## Algebra 1

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 $y=0$ $y=1/2*x+1$ $0=1/2*x+1$ $-1 = 1/2*x$ $-1*2 = 2*1/2*x$ $-2 = x$