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2 votes
F(x) = 3x + 21; solve for f(3) and f(7)

1 Answer

2 votes

Answer:

Explanation:

Given that f(x) = 3x + 21

Plug in 3 for x

F(3)= 3(3) +21

F(3) = 9+21

f(3) = 30

Plug in 7 for x

F(7)= 3(7) +21

F(7) = 21+21

f(7) = 42

User Wilfred Clement
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