solve y=f(x) for x then find the input when the output is 6 f(x)=x+9

Question

solve y=f(x) for x then find the input when the output is 6

f(x)=x+9

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Thu Nguyệt 4 years 2021-08-25T10:08:46+00:00 1 Answers 14 views 0

Answers ( )

  1. King
    0
    2021-08-25T10:10:21+00:00
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    x = -3

    So to figure this out we can readjust the equation to make it easier to solve

    f(x) = x + 9 is equal to x+9 = 6

    From here we can just subtract 9 from both sides and we get our answer!

    x+(9-9) = (6-9)\\x = -3

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