Answer: y=(1/2)x-1
Solution:
Slope-intercept form: y=mx+b
Intercept with y-axis: P1=(0,-1)=(0,b)→b=-1
Slope: m=(y2-y1)/x2-x1)
P1=(0,-1)=(x1,y1)→x1=0, y1=-1
P2=(2,0)=(x2,y2)→x2=2, y2=0
m=(0-(-1))/(2-0)
m=(0+1)/2
m=1/2
Replacing in the slope intercept form:
y=mx+b
y=(1/2)x+(-1)
y=(1/2)x-1
