Goformative Review M2 Quadratics Day 1

Last updated over 3 years ago

5 questions

1

What are the x-values of the function f(x) = 3x2 + 5x – 2 when f(x) = 0?

What are the x-intercepts of the function g(x) = 4(x + 1)(x – 2)?

A. (–1,0) and (2,0)

B. (1,0) and (-2,0)

C. (4,0) and (-1,0)

D. (4,2) and (2,0) 

A ball is thrown into the air. The graph below shows the height of the ball, in feet, with respect to time, in seconds.

Which of the following statements is NOT true?

A.  The ball is in the air for 8 seconds.

B.  The ball is at the same height at 3 seconds and at 5 seconds.

C.  The ball reaches a maximum height of 40 feet.

D. The ball takes the same amount of time to go up as it takes to come down.

A rocket is launched with an initial upward velocity of 320 feet per second from an initial height of 15 feet. The function h(t) = –16t2 + 320t + 15 models the height of the rocket, in feet, t seconds after it was launched. For how many seconds is the the height of the rocket greater than or equal to 1,039 feet?

A.  4 seconds

B.  12 seconds

C.  16 seconds

D.  20 seconds

The linear factors of a quadratic expression are (x + a) and (2x + b), where a and b are positive, odd integers. Which statement about the zeros of this expression’s related quadratic function is FALSE?

A.  Both of the zeros are located on the x-axis.

B. One zero is an integer, and the other is a fraction.

C.  The zeros are the opposites of the constants in the linear factors.

D. The zeros can be found by setting each factor equal to 0 and solving.

What are the x-values of the function f(x) = 3x2 + 5x – 2 when f(x) = 0?

A.  {−2,13}

B.  {2,−13}

C.  {6,−1}

D.  {6,1}

What are the x-intercepts of the function g(x) = 4(x + 1)(x – 2)?

A. (–1,0) and (2,0)

B. (1,0) and (-2,0)

C. (4,0) and (-1,0)

D. (4,2) and (2,0) 

A ball is thrown into the air. The graph below shows the height of the ball, in feet, with respect to time, in seconds.

Which of the following statements is NOT true?

A.  The ball is in the air for 8 seconds.

B.  The ball is at the same height at 3 seconds and at 5 seconds.

C.  The ball reaches a maximum height of 40 feet.

D. The ball takes the same amount of time to go up as it takes to come down.

A rocket is launched with an initial upward velocity of 320 feet per second from an initial height of 15 feet. The function h(t) = –16t2 + 320t + 15 models the height of the rocket, in feet, t seconds after it was launched. For how many seconds is the the height of the rocket greater than or equal to 1,039 feet?

A.  4 seconds

B.  12 seconds

C.  16 seconds

D.  20 seconds

The linear factors of a quadratic expression are (x + a) and (2x + b), where a and b are positive, odd integers. Which statement about the zeros of this expression’s related quadratic function is FALSE?

A.  Both of the zeros are located on the x-axis.

B. One zero is an integer, and the other is a fraction.

C.  The zeros are the opposites of the constants in the linear factors.

D. The zeros can be found by setting each factor equal to 0 and solving.

Goformative Review M2 Quadratics Day 1

Goformative Review M2 Quadratics Day 1

What are the x-values of the function f(x) = 3x2 + 5x – 2 when f(x) = 0?

What are the x-intercepts of the function g(x) = 4(x + 1)(x – 2)?

A ball is thrown into the air. The graph below shows the height of the ball, in feet, with respect to time, in seconds.Which of the following statements is NOT true?

The linear factors of a quadratic expression are (x + a) and (2x + b), where a and b are positive, odd integers. Which statement about the zeros of this expression’s related quadratic function is FALSE?

A ball is thrown into the air. The graph below shows the height of the ball, in feet, with respect to time, in seconds.

Which of the following statements is NOT true?