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Questions and Answers
What is the degree of a quadratic equation?
What is the solution to a simple equation?
What is the graphical representation of an exponential function?
What is the purpose of graphing in mathematics?
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What is the difference between a linear and quadratic equation?
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What is a function in mathematics?
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What is an asymptote in a graph?
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What is the method of elimination used for?
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What is the key feature of a linear graph?
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What is the purpose of finding the domain of a function?
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Study Notes
Equations
- An equation is a statement that says two mathematical expressions are equal
- Equations can be:
- Linear: degree of 1 (e.g., 2x + 3 = 5)
- Quadratic: degree of 2 (e.g., x^2 + 4x + 4 = 0)
- Polynomial: degree of 3 or more (e.g., x^3 + 2x^2 - 7x - 12 = 0)
- Types of equations:
- Simple equations: contain only one variable (e.g., 2x = 6)
- Simultaneous equations: contain two or more variables (e.g., 2x + 3y = 7, x - 2y = -3)
- Solution to an equation: value(s) that make the equation true
- Methods to solve equations:
- Addition and subtraction
- Multiplication and division
- Substitution
- Elimination
Functions
- A function is a relation between a set of inputs (called the domain) and a set of possible outputs (called the range)
- Functions can be represented as:
- Equations (e.g., f(x) = 2x + 1)
- Tables
- Graphs
- Types of functions:
- Linear functions: straight line (e.g., f(x) = 2x + 1)
- Quadratic functions: parabola (e.g., f(x) = x^2 + 2x + 1)
- Exponential functions: rapid growth or decay (e.g., f(x) = 2^x)
- Characteristics of functions:
- Domain: set of inputs
- Range: set of possible outputs
- Increasing or decreasing
- Maximum or minimum values
Graphing
- Graphing is a visual representation of a function or equation
- Types of graphs:
- Linear graphs: straight line
- Quadratic graphs: parabola
- Exponential graphs: rapid growth or decay
- Graphing methods:
- Plotting points
- Using a table of values
- Using a graphing calculator
- Key features of graphs:
- Intercepts (x and y)
- Asymptotes
- Maxima and minima
- Inflection points
- Graphing can be used to:
- Identify patterns and relationships
- Solve equations and inequalities
- Model real-world phenomena
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Description
Test your understanding of algebraic concepts, including equations, functions, and graphing. Covering topics such as linear, quadratic, and polynomial equations, as well as function types and graphing methods.
