For the first one do (y2-y1)/(x2-x1)
Select any two points, so we'll use the points (2,2) and (4,5)
Plug them into the equation (5-2)/(4-2)
The equation begins 3/2
And if we sub subtract 2 from the x and 3 from that y, leaving the y intercept of -1
Making the equation y=3/2x-1
So your answer is C.3/2x-1
For the second one, select any two points, we'll use points, (0,-1) and (1,2)
(2-(-1))/(1-0) =
3/1x
And when x is 0, y is -1 giving it a y intercept of -1
Making the equation 3x-1
So your answer is B.3x-1