There are a lot of inverse functions and relations. An example of this 6-2 skills math is find the inverse of the following relations {(3, 1), (4, -3), (8, -3)}.

<h3>What is inverse functions?</h3>

The term inverse function connote a type of function (f) that is also a function that often undoes a form of operation of (f).

The inverse of the relations. {(3, 1), (4, -3), (8, -3)} is therefore

{(1, 3), (-3, 4), (-3, 8)} .

It is {(1, 3), (-3, 4), (-3, 8)} because one just have to change the arrangement.

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1 year ago

Rewrite the equation from step 1 substituting in the value of.

Masteriza [31]

By rewriting the equation from step 1 substituting the value of k into it, the value of x is 22.5

A direct variation is a type of variation that has two types of variables in which a variable can be expressed in terms of the other with its constant.

For example;

If x varies directly as y

Then

x $\sim$ y
x = ky ; where k is constant

The original question says:

if x varies directly as y, and x = 9 when y = 6, find x when y = 15

∴

x = ky

9 = k × (6)

k = 9/6

k = 1.5

Now, we can rewrite the equation from step 1 substituting the value of k into it:

∴

x = ky

when y = 15 and k = 1.5

The value of (x) will be:

x = 1.5 (15)

x = 22.5

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