Ghana makes a triangular decoration out of clay as shown. When she fires it in the kiln, it shrinks proportionally. If the base of the finished decoration is only 9 inches after firing, what is the height of the finished decoration?

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

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

the one below it is a function