Absolute Value Functions - Pre-Calculus
Card 0 of 3
Which of the following is a point on the following function?
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
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
Compare your answer with the correct one above
Evaluate: 
Evaluate:
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:
Cancel the absolute value sign by separating the function
Evaluate the first scenario.
Evaluate the second scenario.
The correct answer is:
Compare your answer with the correct one above
If 
, then what is the value of 
when 
?
If 
We evaluate for 
Since the absolute value of any number represents its magnitude from 
and is therefore always positive, the final answer would be 
We evaluate for
Since the absolute value of any number represents its magnitude from 
Compare your answer with the correct one above