Mr. sternberg is running 10 feet above sea level. mrs. oliver is swimming 7 feet below sea level. what is the difference in elevation between mr. sternberg and mrs. oliver?

17 feet

Explanation:

If you look at the number line you can count the difference in elevation between the two swimmers.

i believe the answer is the polygon, heptagon.

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1