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Example Question #2 : Special Functions
Which of the following is a point on the following function?
One way to approach this problem would be to plug in each answer and see what works. However, I would be a little more strategic and eliminate any options that don't make sense.
Our y value will never be negative, so eliminate any options with a negative y-value.
Try (0,0) really quick, since it's really easy
The only point that makes sense is (5,83), therefore it is the correct answer
Example Question #1 : Absolute Value Functions
Cancel the absolute value sign by separating the function into its positive and negative counterparts.
Evaluate the first scenario.
Evaluate the second scenario.
The correct answer is:
Example Question #4 : Special Functions
If , then what is the value of when ?
We evaluate for
Since the absolute value of any number represents its magnitude from and is therefore always positive, the final answer would be