Answer :
Answer:
y=2x-2
Step-by-step explanation:
the slope is y/x
the slope is 2 or 2/1
subtract 2 from the y value and 1 from the x value
(3-1,4-2) = (2,2)
keep doing this until you get a 0 in the x value
(2-1,2-2) = (1,0)
1 is your x-intercept
(1-1,0-2) = (0,-2)
-2 is your y intercept.
So now you know your y-intercept and your slope so you can now write your equation.
y=mx+b
m=slope, b=y-intercept
m=2, b=-2
substitute into the equation
y=2x-2