McGraw Hill Glencoe Algebra 2, 2012
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McGraw Hill Glencoe Algebra 2, 2012 View details
8. Graphing Linear and Absolute Value Inequalities
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Exercise 56 Page 121

What information does a slope-intercept form equation give you?

Practice makes perfect

Equations written in slope-intercept form follow a specific format. y=mx+ b In this form, m represents the slope of the line and b represents the y-intercept. Below we highlight the slope m and y-intercept b. y=-3/4x+ 2 The slope is - 34. The y-intercept is 2, so the graph crosses the y-axis at the point (0, 2).

Graphing the Equation

A slope of - 34 means that for every 4 units we move in the positive horizontal direction, we move 3 units in the negative vertical direction. m=-3/4 ⇔ rise/run=-3/4 To graph the equation, plot the y-intercept and then use the slope to find another point on the line.