Questions and Answers
How do you graph a line from an equation?
Set Y=0 to find the X intercept, Set X=0 for the Y intercept, then draw the line.
What do you do when dividing a fraction by a fraction?
Flip the second fraction and multiply.
If an equation has no X variable or no Y variable, the graph is a straight line.
True
What is slope represented as?
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What is the formula for slope?
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What is the standard form of a line?
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What is the slope-intercept form of a line?
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What is linear regression?
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What is Point-Slope Form?
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What is function notation?
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Study Notes
Graphing Lines
- To find the X-intercept, set Y=0; for the Y-intercept, set X=0.
- After determining the intercepts, draw the line through these points.
Dividing Fractions
- When dividing one fraction by another, invert the second fraction and multiply the two fractions directly.
Constants in Equations
- A graph representing an equation with no X variable is vertical, while an equation with no Y variable is horizontal.
Slope
- Slope is defined as Rise over Run, indicating how steep a line is.
Slope Formula
- The formula for calculating slope (m) is given by: m = (y2 - y1) / (x2 - x1).
Standard Form of a Line
- The standard form of a linear equation is expressed as: ax + by = c, where a, b, and c are constants.
Slope-Intercept Form
- The slope-intercept form of a linear equation is represented as: y = mx + b, where m is the slope and b is the y-intercept.
Linear Regression
- A method used to create a line that approximates the trend or spread of a set of data points.
Point-Slope Form
- This form is illustrated as: y - y1 = m(x - x1), which is useful for writing equations of lines knowing a point and the slope.
Function Notation
- Function notation is expressed as: y = f(x), indicating y is a function of x.
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Description
This quiz includes essential algebra concepts specifically tailored for business applications. Learn key techniques such as graphing lines and manipulating fractions through practical examples. Perfect for students looking to enhance their understanding of algebra in a business context.
