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Pearson Geometry Common Core, 2011

PG

Pearson Geometry Common Core, 2011 View details

7. Equations of Lines in the Coordinate Plane

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Exercise 25 Page 194

What format does an equation in slope-intercept form follow?

y=1/2x-5

Practice makes perfect

Equations in slope-intercept form follow a specific format. y= mx+ b Here m represents the slope of the line and b is the y-intercept. We are told that the slope is 12 and the y-intercept is -5. Therefore, m= 12 and b= -5. We can substitute these to obtain the equation of the line.

y=mx+b

m= 1/2, b= -5

y= 1/2x+( -5)

a+(- b)=a-b

y=1/2x-5

Subchapter links

Lesson Check p.193

Practice and Problem-Solving Exercises p.194-196

Standardized Test Prep p.196

Mixed Review p.196