Meg is heading back to her car after a hike to Misty Falls. The waterfall is at an elevation of
4,000 feet, and the trail descends an average of 500 feet for every 1 mile she hikes. You can
use a function to approximate Meg's elevation after she hikes x miles.
write and equation for the function, if it is linear, write the form h(x)=mx+b, if it is exponential, write it in the form h(x)=a(b)^x