Quadratic Function Interpret

Find the y-intercept of f(x) = 2x² - 2x + 1

• (1,0)

• (-2,0)

• (0,1)

• (0, -1)

What is the domain of this function?

• All real numbers

• All real number bigger than 0

• All real number bigger than or equal to 0

• All real numbers less than 0

Which statement best describes the graph below?

• The ball was dropped from a height of 18 feet and then reached a maximum height of 20 feet before reaching the ground.

• The ball was thrown from the ground and then reached a height of 18 feet before landing again in just under 2 seconds.

• The ball was dropped from a height of 18 feet and then descended for just under 2 seconds before it hit the ground.

• The ball was thrown from a height of 2 feet and then descended for 18 seconds before hitting the ground.

The graph represents the height of a rocket that is launched from the top of a building. Which statement best describes the path of the rocket?

• The rocket reached the ground between 2.25 seconds and 2.5 seconds.

• The rocket was below 34 feet between 0.25 seconds and 1 second

• The rocket reached its maximum between 1 second and 1.25 seconds.

• The rocket descended 8 feet between 1.5 seconds and 1.75 seconds.

The graph shows the height of a baseball from the time it is thrown from the top of a building to the time it hits the ground. How much time elapses while the baseball is 80 meters or more above the ground

• 1 sec

• 9 sec

• 7 sec

• 6 sec

The graph shows the height of a ball versus time for one bounce. For how many seconds was the ball at a height of 7 feet or more above the ground?

• 0.25 seconds

• 1 second

• 1.5 seconds

• 1.75 seconds

• All real numbers

The graph below shows h, the height i meters of a model rocket, versus t, the time in seconds after the rocket is launched. From the graph, what conclusion con be made about the flight of the rocket?

• The rocket reaches its maximum height after 2.5 seconds

• At 0 seconds the rocket was 2 meters off the ground

• The height of the rocket was 0 meters when it was launched

• The rocket was in flight for 5 seconds

The table represents some points on a graph of quadratic function g. Which statement about the graph of g is true?

• The graph of g has an x-intercept between 0 and 2.

What is the maximum height?

• 200

• 50

• 3

• 0