Let f(x) = twenty four over the quantity of 3 x minus two. Find f(-2).

Solution:

A relation ‘f’ from a set A to a set B is said to be a function if every element of set A has one and only one image in set B.

In other words, no two distinct elements of B have the same pre-image.

Given,

f(x) = twenty four over the quantity of 3x minus two.

We can write it as

f(x) = 24/(3x - 2)

We have to find the value of f(-2)

f(x) can be written as

f(x) = 24/(3x - 2)

Put x = -2 in the above function,

f(-2) = 24/(3(-2) - 2)

= 24/(-6 - 2)

So we get

= 24/-8

= -3

Therefore, f(-2) is -3.

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Let f(x) = twenty four over the quantity of 3 x minus two. Find f(-2).

Summary:

Let f(x) = twenty four over the quantity of 3 x minus two, then f(-2) is -3.