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2 votes
Find the value of the function f(x) = x2 + 4x - 3, when x = -1.

User Zerocool
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1 Answer

7 votes

Answer:

- 6

Explanation:


f(x) = {x}^(2) + 4x - 3 \\ \: plug \: x = - 1 \\ f( - 1) = {( - 1)}^(2) + 4( - 1)- 3 \\ f( - 1) = 1 - 4- 3 \\ f( - 1) = 1 - 7 \\ \huge \red{ \boxed{ f( - 1) = - 6}} \\

User Brunner
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