There exist a relation that assigns each input value x and assigns it the rule x^2-9 does this relation obey the rule of functions?

Question

anonymous · Answer

Yes or no?

anonymous · Answer

User: Rafaela Guevara 
In Course: M/J Mathematics 1 V10 ( 3453)
Instructor: Ms. Mary McMahon Linn
04.02 Adding and Subtracting Mixed Numbers

Warning: There is a checkbox at the bottom of the exam form that you MUST check prior to submitting this exam. Failure to do so may cause your work to be lost.

Question 1 (Essay Worth 6 points)

When you subtract mixed numbers, how do you know when you need to regroup?

 
   

Question 2 (Essay Worth 6 points)

James added 3 and two-thirds plus 4 and one-eighth. His work is shown here. What did James do right? What did he do wrong? What should he have done? 

three and two-thirds plus 4 and one-eighth equals 7 and three-elevenths

 
7 and fifteen-sixteenths minus 4 and seven-sixteenths is equal to what number?wath is the answer.

anonymous · Answer

What is that ????....That does not answer my question

anonymous · Answer

Nevermind i figured out my own question and the answer is yes