Respuesta :

Answer:

The answer to your question is:

Step-by-step explanation:

8.-

A (8, 28)

B (0, 0)

m = (0- 28) / (0 - 8)

m = 7/2

                    y = (7/2) x

A( 16, 4)

B (0,0)

m = (0-4) / (0 - 16)

m = 1/4

                  y = (1/4) x

The constant of proportionality represents the slope of the line

9.-

a) (0,0) represents the start of the race.

b)

Horse A = 5 min

Horse B = 4 min