Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution set of this problem? A) x less-than negative 5
B) x greater-than negative 5
C) x greater-than negative 1
D) x less-than negative 1

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