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3 years ago

If f(×) = 3x + 7, which of these is the inverse of f(x)?

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

5 0

Answer:

First equate 3x + 7 to any unknown

3x + 7 = P

Then make x the subject of the formula

3x + 7 = P

3x + 7-7= P-7

3x = P-7

3x ÷ 3 = (P-7) ÷ 3

x = (P-7) ÷3

Then interchange x with the unknown which I have as P

x = (P-7) ÷ 3

P = (x-7) ÷ 3

Then inverse of f(x)

is;

f-1(x) = (x-7) ÷ 3

Thank you.

BY GERALD GREAT.

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If f(×) = 3x + 7, which of these is the inverse of f(x)?​

If f(×) = 3x + 7, which of these is the inverse of f(x)?