Answer
G) -2
Work Step by Step
The line goes through the points $(2,0)$ and $(0, -1)$.
$m = (0--1)/(2-0)$
$m = 1/2$
$y=mx+b$
$y=1/2*x+b$
$0=1/2*x+b$
$0=1/2*2+b$
$0 = 1+b$
$-1 = b$
$y=1/2*x-1$
We have the y-intercept $(0,-1)$, so we will add 2 to the y-intercept and have a new intercept of $(0,1)$.
This changes the equation of the line to $y=1/2*x+1$
$y=1/2*x+1$
Let $y=0$
$y=1/2*x+1$
$0=1/2*x+1$
$-1 = 1/2*x$
$-1*2 = 2*1/2*x$
$-2 = x$
