## Algebra 1: Common Core (15th Edition)

$y=2x+4$
Use the points $(2,1)$ and $(3,3)$. Slope: $m=\dfrac{1-3}{2-3}$ $m=\dfrac{-2}{-1}$ $m=2$ Slope-form: $y=mx+b$ $1=2(2)+b$ $1=4+b$ $-3=b$ The other equation would have the slope $2$ and the point $(0,4)$ $y=mx+b$ $4=2(0)+b$ $4=0+b$ $4=b$ The equation would be $y=2x+4$
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