Quadratic Functions · Exercise 60

Use a calculator to find the answer.

A suspension bridge can be modeled by the quadratic function $h\left(x\right)=.0001x^2$ with $-2000\le x\le 2000$ where $\left|x\right|$ is the number of feet from the center and $h\left(x\right)$ is height in feet. Use the TRACE feature of your calculator to estimate how far from the center does the bridge have a height of 100 feet.

OpenStax, Algebra and Trigonometry 2e · §5.1 Quadratic Functions · Exercise 60