3 years ago

If f(x) = 5x + 40, what is f(x) when x equals -5?

Mathematics

1 answer:

sladkih [1.3K]3 years ago

3 0

$f(x)=5x+40\\\\x=-5\\\\\text{substitute the value of x to the equation}\\\\f(-5)=5\cdot(-5)+40=-25+40=15$

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