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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

3. Slope-Intercept Form

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Exercise 18 Page 312

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

y=1/2x-1/2

Practice makes perfect

Equations in slope-intercept form follow the format y= mx+ b, where 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 - 12. Therefore, m= 12 and b= - 12. We can substitute these to obtain the equation of the line.

y=mx+b

m= 1/2, b= -1/2

y= 1/2x+( -1/2)

a+(- b)=a-b

y=1/2x-1/2

Subchapter links

Lesson Check p.311

Practice and Problem-Solving Exercises p.312-314

Standardized Test Prep p.314

Mixed Review p.314