Question

Which graph is the correct one?

Answer 1

Answer:

The upper graph

Step-by-step explanation:

We have two quadratic function here

$y=-x^{2} +3x+5\\y=x^{2} +2x$

If we perform the function f(x) + g(x), which is nothing more than the sum of the two functions, we obtain a linear function, since the quadratic terms are eliminated by themselves

$5x+5$