Answer:
Step-by-step explanation:
ƒ(x) = -2x - 12
f(20) = -2(20) - 12
= -40 - 12
= -52
The value of 'x' is -16 and this can be determined by using the arithmetic operations and the given data.
Given :
f(x) = -2x - 12
The following steps can be used in order to determine the value of 'x' when (f(x) = 20) :
Step 1 - The arithmetic operations can be used in order to determine the value of 'x' when (f(x) = 20).
Step 2 - Write the given function.
f(x) = -2x - 12
Step 3 - Now, substitute the value of f(x) in the above expression.
20 = -2x - 12
Step 4 - Simplify the above expression.
32 = -2x
x = -16
For more information, refer to the link given below:
https://brainly.com/question/5245372
