Which equation represents a linear function?
equation 1: y = 2x2 + 1
equation 2: y = 8x + 1
equation 3: y = 5x3 – 1
equation 4: y2 = 4x – 1

a. equation 1
b. equation 2
c. equation 3
d. equation 4

What point is the projection of q on a) r b) s c) t

Can someone me with this problem i don't understand i need

Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?