Iwill give brainliest must use work : ) what is the equation of this graphed line? a graph with a line running through coordinates (0, 7) and coordinates (8, -2) enter your answer in slope-intercept form in the box.

slope = (y2-y1)/(x2-x1)

m =(-2-7)/(8-0)

m =(-9/8)

slope is -9/8

the y intercept is 7   (0,7)

y = mx +b

y = -9/8 x+7

y = -9/8x +7

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50