Question

Let f(x) = 12 over the quantity of 4 x + 2 . Find f(−1)

Answer 1

$f(x) = \dfrac{12}{4x + 2}$

To find f(-1), we substitute the value x with -1:

$f(-1) = \dfrac{12}{4(-1) + 2}$

Evaluate the denominator:

$f(-1) = \dfrac{12}{-2}$

Evaluate the numerator with the denominator:

$f(-1) = -6$

Answer: f(-1) = -6

Answer 2

According to the given details, we can take f(x) as 12.

In this question, we need to find out f(-1).

The explanation to this given condition is given below.

F(-1)=4(-1) + 2, f(-1)=-4+2. Therefore f(-1)=-2. The answer to this question is -2.  

To find the answer, we need to simply substitute the values in the given equation.