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Chapter 4: Q. 4.79 (page 499)

Use the graph to find the slope and y-intercept of the line y=23x-1. Compare these values to the equation y=mx+b.

Short Answer

Expert verified

The solution is slope=23 and y-intercept=0,-1.

Step by step solution

01

Step 1. Given information

Line:y=23x-1

02

Step 2. Calculation

Use the points 0,-1and 3,1on the line.

Here, m=riserun

m=23

The y-intercept is the point 0,-1.

Now compare, y=23x-1

y=mx+b

The slope is the same as the coefficient of x and the y-coordinate of the y-intercept is the same as the constant term.

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