Question

PLEASE HELP!!!!!!

Officer Franklin is on traffic duty. His motorcycle is parked alongside the freeway, and he's using his radar gun to check the speed of cars. The speed limit on this stretch of freeway is 75 miles per hour. A sports car races by Officer Franklin, causing him to lose his grip on the radar gun. When he picks it back up, he clocks the car at 93 miles per hour as it passes a bridge one-half of a mile ahead of him.


Use your knowledge of writing equations to help determine the driver's location.


1. Consider the slope-intercept form of the equation of the line representing the sports car's distance from Officer Franklin's location over time.


A: What is the coefficient for ?

B: What part of the line does it represent?


Select two answers. Select one answer for A and one answer for B.

b:Run

A:75

A:0.5

B:X-intercept

B:Rise

A:93

B:Y-intercept

B:slope


2.C

Answer 1

A:93
B: slope

the slope is the rate of change of the line. this line models the distance between cop and the driver. note that the cop is standing still while the sports car is moving away at 93 mph

if the x-axis is in hours and the y-axis is in miles, then slope = rise/run = km/h, which is kilometers per hour. the slope is the rate of change of distance for the distance vs time graph

therefore the slope is 93 mph