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Gretchen Holden
Mathematics
9 November, 02:06
What is f (x) = - 2x + 7 where x = - 5?
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Ollie
9 November, 02:11
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Answer: 17
Explanation: In this problem we're given the function f (x) = - 2x + 7 and we are asked to find f (-5).
In other words, if we put an x into our function, we get a - 2x + 7 out so we want to figure out what will happen when we put a - 5 into the function.
Well if we put a - 5 into the function, that's f (-5) and we get a - 2 * - 5 + 7 out. Or, f (-5) = 10 + 7. Now all we have to do is simplify on the right side to get f (-5) = 17.
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Alijah Mckee
9 November, 02:24
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Solve the function f (x) = - 2x + 7 where x = - 5.
~Fill in for x
f (5) = - 2 (-5) + 7
~Multiply
f (5) = 10 + 7
~Simplify
f (5) = 17
Thus, the answer is 17.
Best of Luck!
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