If f (x) = -x^2+3X + 5 and g (x) = X^2 + 2x, which graph shows the graph of (f+g) (x) ?

Question

Mathematics

Adalynn Costa

9 October, 20:39

If f (x) = -x^2+3X + 5 and g (x) = X^2 + 2x, which graph shows the graph of (f+g) (x) ?

+3

Answers (1)

Know the Answer?

Colton Cantrell · Answer 1

Step-by-step explanation:

+ We find the function (f+g) (x) like

(f+g) (x) = f (x) + g (x) = x^2 + 3x+5 + x^2 + 2x = 2x^2 + 5x + 5

+ So the graph of (f+g) (x) is a parabole with the sommet (-5/4, 15/8).

Hope that useful for you.