Answer:
just for points.............
9 * 5 = 45
5 * 9 = 45
15 * 3 = 45
3 * 15 = 45
*Hope that helps and enjoy Brainly :)*
Slope of a line perpendicular to an equation is the negative reciprocal of the original equations slope.
In this case the slope is -4 so the line perpendicular will be +1/4
y = (1/4)x + b
7 = (1/4)*-2 + b
7 = -1/2 + b
b = 7 1/2 or 7.5
Full equation is y = (1/4)x + 7.5