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5 votes
. During the Grinch's engine test, if the path traveled is represented by the

function f(x) = 4x + 2. what is the value of f(-2), corresponding to "Hit
Here"?

User Tedesha
by
5.2k points

1 Answer

3 votes

Answer:
f(-2)=-6

Explanation:

For this exercise it is important to remember the multiplication of signs:


(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

You have the following function provided in the exercise, which represents the path traveled:


f(x) = 4x + 2

In order to find the value of
f(-2) you can follow these steps:

1. You need to substitute
x=-2 into the function, then:


f(-2) = 4(-2)+ 2

2. Finally you must evaluate. Then you get:


f(-2) =-8+ 2\\\\f(-2)=-6

User Vincent Han
by
5.7k points