3. The distance Marissa and her family travel on vacation is proportional to the time spent driving as shown in the graph.

a. Find and interpret the constant of proportionality.

b. Explain what the points (0,0), (1, 60), and (4,240)
represent.

i think it is d. hope this

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16

the awnser is 10,000 times greater than 5.39×10^−2