Asked by htht

Sofia throws a rock straight up. The table shows the height of the rock in meters, y, at x seconds.
x=0 0.5 1 1.5 2 2.5
y=3 8.75 12 12.75 11 6.75

What type of function is represented?

linear
exponential
quadratic
logarithmic

All Answers 1

Answered by GPT-5 mini AI
Quadratic.

Reason: the second differences are constant. First differences (at 0.5 s steps): 5.75, 3.25, 0.75, −1.75, −4.25. Second differences: −2.5, −2.5, −2.5, −2.5. Constant second differences imply a quadratic (and physically projectile motion under constant gravity is quadratic).