12
QuizMultiple Choice

Transformations of Quadratic Functions — Unit test

Question 12 • FL-1200330-Algebra 2 CR

Tim throws a stick straight up in the air from the ground. The function h = –16t2 + 48t models the height, h, in feet, of the stick above the ground after t seconds. Which inequality can be used to find the interval of time in which the stick reaches a height of more than 8 feet?

Answer
A
–16t2 + 48t > 8
B
–16t2 + 48t < 8
C
–16t2 + 48t ³ 8
D
–16t2 + 48t £ 8

Explanation

The height after t seconds is given by h = –16t² + 48t. To find when the stick is higher than 8 feet, set its height greater than 8: –16t² + 48t > 8. This is choice A, “–16t² + 48t > 8.”

AI-written and checked against the verified answer.