Garry is cooking for his friends. He wants to buy some potatoes, which are priced at m dollars a pound. He has already spent b dollars on other ingredients. The following expression represents the total amount of money that Garry would spend after buying x pounds of potatoes. mx + b

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