Assume that the x-axis represents the ground and f(x) represents the height in feet. Which rocket was the highest?

i belive those are the ones that are under 90 degreese.

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

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.