McGraw Hill Glencoe Algebra 1, 2012
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McGraw Hill Glencoe Algebra 1, 2012 View details
7. Inverse Linear Functions
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Exercise 24 Page 268

Exchange x and y, then solve for y.

f^(- 1)(x)=6x-42

Practice makes perfect
To find the inverse of the given equation, we exchange x and y and solve for y. Given Equation & Inverse Equation - 42+6 y= x & - 42+6 x= yThe result of isolating y in the new equation will be the inverse of the given function. In this case, we only have to rearrange the equation and the terms.
- 42+6x=y
y=- 42+6x
y=6x-42
Finally, we write the inverse of the given equation in function notation by replacing y with f^(- 1)(x) in our new equation. f^(- 1)(x)=6x-42