Question

See photo for problem, please help

Answer 1

Considering the given functions in the graph, we have that:

• (f + g)(3) = 4.

• (f - g)(1) = -2.

How to find (f + g)(3) looking at the graph?

We look at the graph, and find f(3) and g(3), then add them. Hence:

• g(3) = 4.

• f(3) = 0.

Then the addition is:

(f + g)(3) = f(3) + g(3) = 0 + 4 = 4.

As for (f - g)(1):

Same logic, at the graph we have that:

• f(1) = -1.

• g(1) = 1.

Hence:

(f - g)(1) = f(1) - g(1) = -1 - 1 = -2.

More can be learned about functions at brainly.com/question/25950034

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