Rebecca ran 4 laps at a time of 2.5 minutes per lap. She wants to decrease her total time by -0.20
minutes, with equal time per lap. Her goal is to change
her time for each lap by how many minutes?

0,0

step-by-step explanation:

y = 3x+4

step-by-step explanation:

to find the slope

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

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4