What are the x-values of the function f(x) = 3x2 + 5x – 2 when f(x) = 0?
1 point
1
Question 2
2.
What are the x-intercepts of the function g(x) = 4(x + 1)(x – 2)?
1 point
1
Question 3
3.
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?
1 point
1
Question 4
4.
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?
1 point
1
Question 5
5.
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?