Final Exam Review - Math 1314
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Questions and Answers

List the intercepts for the graph of the equation. x² + y - 36 = 0

(-6, 0), (0, 36), (6, 0)

List the intercepts for the graph of the equation. 16x² + y² = 16

(-1, 0), (0, -4), (0, 4), (1, 0)

List the intercepts for the graph of the equation. y = x² + 14x + 48

(-8, 0), (-6, 0), (0, 48)

Find an equation for the line, in the indicated form, with the given properties. Containing the points (-2, 2) and (7, -4); slope-intercept form

<p>y = -2/3 x + 2/3</p> Signup and view all the answers

Write an equation for the line described. Write the equation in the form specified. Through (3, 4), parallel to y + 8x = 4

<p>y = -8x + 28</p> Signup and view all the answers

Find an equation for the line with the given properties. Perpendicular to the line y = 1/9x + 9; containing the point (4, -5)

<p>y = -9x + 31</p> Signup and view all the answers

Write the standard form of the equation of the circle with radius r and center (h, k). r = 10; (h, k) = (1, -9)

<p>(x - 1)² + (y + 9)² = 100</p> Signup and view all the answers

Write the standard form of the equation of the circle with radius r and center (h, k). r = √17; (h, k) = (-9, 8)

<p>(x + 9)² + (y - 8)² = 17</p> Signup and view all the answers

Find the center (h, k) and radius r of the circle with the given equation. (x - 6)² + (y + 9)² = 144

<p>(h, k) = (6, - 9); r = 12</p> Signup and view all the answers

Find the center (h, k) and radius r of the circle with the given equation. x² + y² - 6x - 16y + 73 = 16

<p>(h, k) = (3, 8); r = 4</p> Signup and view all the answers

Find the value for the function. Find f(-2) when f(x) = (x^2 - 4)/(x + 3)

<p>0</p> Signup and view all the answers

Find the domain of the function. h(x) = (x - 3)/√(x² - 81x)

<p>{x | x ≠ -9, 0, 9}</p> Signup and view all the answers

Find the domain of the function. f(x) = x² + 4

<p>All real numbers</p> Signup and view all the answers

Find the domain of the function. f(x) = √7 - x

<p>{x | x ≤ 7}</p> Signup and view all the answers

Use the graph of f given below to find f(40).

<p>20</p> Signup and view all the answers

Determine algebraically whether the function is even, odd, or neither. f(x) = -3x^4 - x^2

<p>Even (A)</p> Signup and view all the answers

Determine algebraically whether the function is even, odd, or neither. f(x) = 4x^3 + 5

<p>Odd (B)</p> Signup and view all the answers

Determine algebraically whether the function is even, odd, or neither. f(x) = x/(x^2 - 3)

<p>Neither (C)</p> Signup and view all the answers

Use the graph to find the intervals on which it is increasing, decreasing, or constant.

<p>Decreasing on (-π, -π/2) and (π/2, π), increasing on (-π/2, π/2)</p> Signup and view all the answers

Find the average rate of change for the function between the given values. f(x) = 4x^3 - 8x^2 - 1; from 1 to 5

<p>76</p> Signup and view all the answers

Flashcards

x-intercepts

Points where the graph crosses the x-axis. Y-coordinate is always 0.

y-intercepts

Points where the graph crosses the y-axis. X-coordinate is always 0.

Slope-intercept form

Equation of a line written as y = mx + b, where m is the slope and b is the y-intercept.

Parallel lines

Lines with the same slope but different y-intercepts, never intersecting.

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Perpendicular lines

Lines with slopes whose product is -1, forming a 90-degree angle.

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Standard form of a circle

Equation of a circle written as (x-h)^2 + (y-k)^2 = r^2, where (h, k) is the center and r is the radius.

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Finding the center and radius of a circle

Given the standard form, identify the center (h, k) and the radius r by taking the square root of the constant term.

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Function evaluation

Finding the value of f(x) for a specific value of x by substituting the value into the function.

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Domain of a function

Set of all possible x-values for which the function is defined.

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Even function

Function where f(-x) = f(x) for all x in its domain. Symmetrical about the y-axis.

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Odd function

Function where f(-x) = -f(x) for all x in its domain. Symmetrical about the origin.

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Increasing function

Function where as x-values increase, y-values also increase.

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Decreasing function

Function where as x-values increase, y-values decrease.

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Average rate of change

Change in y divided by the change in x over a given interval.

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Piecewise function

Function defined by multiple sub-functions, each with a specific domain interval.

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Transformations of functions

Changes to the graph of a function, such as shifting, stretching, and reflecting.

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Vertex of a parabola

Lowest or highest point on the graph of a quadratic function.

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Axis of symmetry of a parabola

Vertical line that divides the parabola into two symmetrical halves.

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Maximum height of a projectile

Highest point reached by an object thrown upwards.

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Maximum revenue

Highest revenue a company can earn by selling a product.

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Solving inequalities

Finding the values of x that satisfy a given inequality.

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Zero of a polynomial function

Value of x for which the function equals zero, or where the graph crosses the x-axis.

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Multiplicity of a zero

Number of times a factor appears in the factored form of a polynomial. Determines how the graph behaves near the zero.

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Factor Theorem

If x - c is a factor of f(x), then f(c) = 0.

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Potential rational zeros of a polynomial

Possible rational roots of a polynomial, found using the Rational Root Theorem.

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Vertical asymptote

Vertical line that the graph approaches as x approaches a specific value.

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Horizontal asymptote

Horizontal line that the graph approaches as x approaches positive or negative infinity.

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Composite function

Function formed by applying one function to the output of another.

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Inverse function

Function that reverses the effect of another function. Swapping inputs and outputs.

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Logarithmic expression

Mathematical expression that represents the exponent to which a base must be raised to obtain a specific number.

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Domain of a logarithmic function

Set of all possible x-values for which the logarithm is defined.

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Properties of logarithms

Rules that govern operations involving logarithms.

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Study Notes

Final Exam Review - Math 1314

  • Intercepts: Find the x and y intercepts for various equations.
    • Example equations: x² + y - 36 = 0, 16x² + y² = 16, y = x² + 14x + 48.
  • Line Equations: Find equations of lines:
    • Write equations in slope-intercept form given points or properties like parallel lines.
    • Find equations of lines perpendicular to a given line and containing a specific point.
  • Circle Equations: Find standard form of a circle given radius and center.
    • Find the center and radius of a circle given the equation.
    • Example: (x - 6)² + (y + 9)² = 144
  • Function Evaluation: Find the value of a function at a given input (x-value).
    • Example: Find f(-2) when f(x) = (x² - 4)/(x + 3)
  • Function Domain: Find the domain of a function
    • Example: h(x) = (x - 3)/(x³ − 81x)
  • Function Graph Analysis: Analyze function graphs to determine intervals of increase, decrease, or constant behavior and find f(40) or related problems from graph.
  • Even/Odd Functions: Determine if functions are even, odd, or neither algebraically.
  • Average Rate of Change: Calculate the average rate of change of a function over a given interval.
    • Example: f(x) = 4x³ - 8x² - 1; from 1 to 5
  • Composite Functions: Evaluate composite functions and use graphs or information to find the value of composite function -Example: f(x) = 2x + 2, g(x) = 2x² + 1; find (f°g)(0).
  • Transformation of functions Use transformation to sketch the graphs of new functions from a given function
    • Example: F(x) =f(x+2) - 1
  • Horizontal Asymptotes (and Rational Functions): Find the equation of the horizontal asymptote of a rational function.
    • Example: g(x) = (x + 7)/(x² - 36)
  • Graph of function: Answer questions about a function from its graph. -Example: For what numbers x is f(x) > 0?
  • Inverse Functions: Find the inverse of a given one-to-one function.
  • Logarithms: Convert expressions between exponential and logarithmic forms.
    • Simplify expressions involving logarithms. Find the domain of a logarithmic function
  • Exponential Equations: Solve exponential equations.
  • Systems of Equations: Solve a system of linear equations using matrices.

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Description

Prepare for your Math 1314 final exam with this comprehensive review quiz covering intercepts, line equations, circles, function evaluation, and domain analysis. Test your knowledge with example problems and refine your understanding of key mathematical concepts essential for success. Boost your confidence as you tackle various equations and function graph analysis.

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