Which of the following are written in point-slope form?
a) y = 4x + 6
b) y + 3 = -2(x – 6)
c) x + y = 10
d)y- 1 = 5(x + 7)

How can you tell when x and y are not directly proportional?

An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2