Solve this question if f(x) = 5x + 40, what is f(x) when x= -5

› Algebra › Solve this question if f(x) = 5x + 40, what is f(x) when x= -5

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3 years ago

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classicwestconcertjuly2017 Staff answered 3 years ago

Consider the function:
f(x)=5x+40
To calculate f(x) when x=-5
Substitute x=-5 in given function then,
f(−5)=5(−5)+40
=−25+40
=15
Hence the value of the function is 15 when x=-5

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