Here is your function:
You're looking for f(-1). To get your answer, you have to replace all the x's with -1.
Here is your new equation:
Multiply 2 by -1
<em>Remember:</em>
MULTIPLYING
- Positive(+) times negative(-) is equal to negative
- Positive(+) times positive(+) is equal to positive
- Negative(-) times negative(-) is equal to positive
- Negative(-) times positive(+) is equal to negative
DIVIDING
- Positive(+) divided by positive(+) is equal to positive
- Positive(+) divided by negative(-) is equal to negative
- Negative(-) divided by positive(+) is equal to negative
- Negative(-) divided by negative(-0 is equal to positive
Since you're multiplying a negative number by a positive number, the answer will be negative.
Here is your new equation:
Add -2 and 2:
That means your answer is 0
↓
<em>If you have any questions, feel free to ask in the comments! :)</em>