A car magazine wants to determine the maximum rpm of a car. The following graph shows the equation y=−2x2+8x. The equation represents the function for the rpm of the car in thousands, where the rpm is y and the number of seconds is x

Question

.



The maximum rpm for the car is
(1 point)
Responses

6,000 rpm
6,000 rpm
8,000 rpm
8,000 rpm
10,000 rpm
10,000 rpm

Question 2
The engine returns to idle and the rpm becomes 0 at(1 point)
Responses

2 seconds
2 seconds
3 seconds
3 seconds
4 seconds
4 seconds

Question 3
The rpm of the car increases for the first(1 point)
Responses

2 seconds
2 seconds
3 seconds
3 seconds
4 seconds
4 seconds

Question 4
(1 point)
seconds, then it decreases for the next
seconds.
Question 5
The axis of symmetry is(1 point)
Responses

2 seconds
2 seconds
3 seconds
3 seconds
4 seconds

Answer 1

The axis of symmetry is 2 seconds.