Depends on the speed of the road assuming 65 or faster no they were not speeding. At 60 yes they were but not by much lol
1/a
The b^-3 in the denominator and numerator cancel out
You have to check f(1) in each one to see if it's right and for f(4)
One of the easier approaches would be that of x- and y-intercepts.
Setting x=0 results in y=-10; the y-intercept is (0, -10).
Setting y = 0 results in x = 5, so the x-intercept is (5,0).
Plot these 2 points. Then draw a str. line thru these points.
