Answer
See table below.
Graph:
.
Work Step by Step
Calculate the corresponding y for each value of x
$\left[\begin{array}{llllll}
x & -1 & 0 & 1 & 2 & 5/2\\
y & 7 & 5 & 3 & 1 & 0\\
(x,y) & (-1,7) & (0.5) & (1,3) & 2,1) & (2.5,0)
\end{array}\right]$
Plot the points and draw a line through them.