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Pearson Algebra 1 Common Core, 2011 View details

3. Slope-Intercept Form

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Exercise 16 Page 312

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

y=x-1

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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 1 and the y-intercept is -1. Therefore, m= 1 and b= -1. We can substitute these to obtain the equation of the line.

y=mx+b

SubstituteII

m= 1, b= -1

y= 1x+( -1)

MultByOne

a * 1=a

y=x+(-1)

AddNeg

a+(- b)=a-b

y=x-1