Erin is buying a tv with an original price of 650. She receives a 20% discount. How much will Erin pay, before tax, for the TV
1 answer:
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Given:
The function is:
To find:
The inverse of the given function, then draw the graphs of function and its inverse.
Solution:
We have,
Step 1: Substitute .
Step 2: Interchange x and y.
Step 3: Isolate variable y.
Step 4: Substitute .
Hence, the inverse of the given function is and the graphs of these functions are shown below.
