Question

F(y) = y² + 10y + 21
f'(2) = ?
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Answer 1

♪Answer :

»f(y) = y² + 10y + 21

• Find f'(y) in f(y)

»f'(y) = 2y + 10 + 0

»f'(y) = 2y + 10

• Find f'(2) in f(y)

»f'(2) = 2(2) + 10

»f'(2) = 4 + 10

»f'(2) = 14✅

Answer 2

14

Explanation:

f'(2) = 2y + 10

f'(2) = 2(2) + 10

= 4 + 10

= 14