Question

I don’t know how to do this, can someone please explain, it would mean a lot!!!

Answer 1

a) 17

Explanation:

The integral is the area under the curve.

The area between x=1 and x=7 equals the area between x=1 and x=5 plus the area between x=5 and x=7.

∫₁⁷ f(x) dx = ∫₁⁵ f(x) dx + ∫₅⁷ f(x) dx

∫₁⁷ f(x) dx = 7 + 10

∫₁⁷ f(x) dx = 17