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

You are given the points (1,1) and (3,7).Use this to form an equation: Find the slope: M:$\frac{7-1}{3-1}$ M:3 Find b: y=mx+b 1=3(1)+b 1=3+b b=-2 Plug all the values into the slope-intercept form so y=3x-2.