Quadratic Functions · Exercise 59

Use a calculator to find the answer.

The path of an object projected at a 45 degree angle with initial velocity of 80 feet per second is given by the function $h\left(x\right)=\frac{-32}{{\left(80\right)}^2}{x}^2+x$ where $x$ is the horizontal distance traveled and $h\left(x\right)$ is the height in feet. Use the TRACE feature of your calculator to determine the height of the object when it has traveled 100 feet away horizontally.

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Algebra and Trigonometry 2e · §5.1 Quadratic Functions · Exercise 59