Evaluating Combinations of Functions

[nycmathguy]

Section 1.8
Question 46

See attachment.

Let me see.

46a.

(f - g)(1) means f(1) - g(1).

f(1) = 2

g(1) = 3

So, (f - g)(1) = 2 - 3 or -1.

46b.

(fg)(4) means f(4) • g(4).

f(4) = 4

g(4) = 0

So, (fg)(4) = 4(0) = 0.

You say?

 

[MathLover1]

correct

 

[nycmathguy]

correct

Finally got it right.