Let f(x) = 2x - 6 Solve f-1(x) when x = 2.

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25-09-2017
Mathematics

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Let f(x) = 2x - 6 Solve f-1(x) when x = 2.

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ruhibreddy ruhibreddy · Answer 1 · 2017-09-25T04:18:53+02:00

ruhibreddy ruhibreddy

25-09-2017

This is an inverse function, so first we have to flip x and y:

y = 2x - 6
x = 2y - 6

Now, let’s substitute 2 into the equation:

2 = 2y - 6

Solve:

8 = 2y
y = 4

Hope this helped!

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