Mary has a small round mirror in her purse. if the mirror is 4 inches in diameter, what is the area of the mirrored surface?

Diameter = 4 inches

Radius = diameter/2 = 4/2 = 2 inches

Area = πr^2 = π(2)^2 = 4π = 12.57 inches squared approx.

step-by-step explanation:

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