# Thread: algebra question with a table and I need an quadratic equation

1. ## algebra question with a table and I need an quadratic equation

Q: a boy threw a baseball in the air. The following table shows the height of the baseball in 1 second intervals.
 Time (seconds) Height(feet) 0 0 1 10 2 20 3 10
Based on the quadratic model, which best approximates the height at 1.25 seconds?

A 6.5
B 7.5
C 12.8
D 15

2. ## Re: algebra question with a table and I need an quadratic equation

Oh and explain please I don't understand

3. ## Re: algebra question with a table and I need an quadratic equation

"Based on the quadratic model" means trying height equal to $h(t)= at^2+ bt+ c$ for some numbers a, b, and c. Use three of the t and h values you are given to get three equations to solve for a, b, and c. Then evaluate h for t= 1.25.