Question

H(x)=-5x^2+10x+15h(x)=−5x 2 +10x+15h, left parenthesis, x, right parenthesis, equals, minus, 5, x, squared, plus, 10, x, plus, 15 What is the height of the stone at the time it is thrown?

Answer 1

15 units

Explanation:

Given the equation which models the path of a stone as:

`H(x)=-5x^2+10x+15`

At the time when the stone was thrown

x=0

Therefore:

`H(0)=-5(0)^2+10(0)+15\\H(0)=15`

The height of the stone at the time it is thrown is 15 units.