Midpoint (-8,21), endpoint (-4,14)

For which pair of functions is (gof)(a)=|a|-2?

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1