Given:

To find:
The equation that can be simplified to find the inverse of given equation.
Solution:
We have,

To find the inverse first we have to interchange x and y.

Now, we to solve this equation for y to find the inverse.
So, the equation
can be simplified to find the inverse of given equation.
Therefore, the correct option is 4.
71. answer is zero (0).
72. answer is negative six (6)
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Answer:
The sum of interior angles of given polygon is 900°
Step-by-step explanation:
A regular polygon is a n-sided figure with n sides and the length of all sides is same.
In the diagram, we have a polygon with 7 sides.
The formula given is used to calculate the sum of interior angles of a polygon

Here n is the number of sides of polygon
In the given polygon
n = 7
So,

Hence,
The sum of interior angles of given polygon is 900°