Step-by-step explanation:
3x+8<4x−12
Move all terms containing x
to the left side of the inequality.
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−x+8<−12
Move all terms not containing x
−x<−20
x>20
Interval Notation:(20,∞)
ANSWER

EXPLANATION
The given function is

We need to find the inverse of this function,
Let

We interchange x an y to obtain,

We solve for y now to obtain,

We divide through by m to get,

Hence the inverse function is ,

For this inverse to exist, the denominator must not be equal to zero,
Thus

The correct answer is A.