What is -5 + 15

-10
10
20
-20

-5+15 is 10

Step-by-step explanation: what you could've done was 15-5 and it would've brang the same answer.

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.