Answer:
Both the relations are functions, the correct answer is a.
Step-by-step explanation:
In order to solve this problem we will first find the inverse relation as shown below:

Functions are relations between two groups of numbers, for which the input must generate only one output. Using this definition we can classify both the relation and its inverse as a function, therefore the correct answer is a.
Answer:
24.15 is 7/20 or 35% of 64
Step-by-step explanation:
Answer: I believe the answer is the second choice.
81y^4 - 16x^2, the difference of squares.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
-7 cubed = -343
-3 squared = -9
-343 - (-9) = -334