This list describes the motion of a car:

-gradually slows down for traffic
-stops at a red light
-accelerates from a stop and settles at the speed limit

Which graph could show the car's speed over time?

The last one

Step-by-step explanation:

It is rising there for speed is increasing

step-by-step explanation:

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.