Chapter 4 - An Introduction to Functions - 4-4 Graphing a Function Rule - Got It? - Page 253: 1

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We are given: $y=\frac{1}{2}x-1$ $x =-1: y=\frac{1}{2}(-1)-1=\frac{-3}{2} \rightarrow (-1,\frac{-3}{2})$ $x =0: y=-1 \rightarrow (0,-1)$ $x =1: y=\frac{-1}{2} \rightarrow (1,\frac{-1}{2})$ $x =2: y=0 \rightarrow (2,0)$