Which expression is equivalent to 3 x - 3y

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

Witch represents the inverse of the function f(x)=1/4x-12

If f(x)=x+7 and g(x)=1/x what is (fog)(x)