Use the graph that shows the solution to f(x)=g(x) .
f(x)=−(x+2)(x−2)
g(x)=2|x+2|
What is the solution to f(x)=g(x) ?
Select each correct answer.
−2
0
2
4
The only thing difficult here is to decide which graph is the correct one
f(x) is the same on both graphs
g(x) = 2 l x + 2 ] is the absolute value graph of l x l shifted two units to the left with a vertical stretch
The " vertex" of l x l = (0, 0)
So...the "vertex" of 2 l x + 2 l is (-2, 0)
So....the first graph is correct
And the x values for the solutions are
x = -2 and x = 0