Texas Highway Patrol Officers determined the speed a car was traveling when the driver slammed on the brakes by measuring the length of the skid marks left by the tires. The speed
of a car on dry pavement can be determined by using the function:
f(x) = V24x,
where is the length of the skid marks in feet. The graph below shows the length of skid marks
for several cars.
Length of Skid Marks
160
140
60
140
120
100
80
60
90
Length (feet)
45
40
20
0
Ford
Honda' Chevy Toyota
Type of Car
What is the speed of the CHEVY in simplest form? (Round to nearest hundreth)
Answer =
mph