Answer:
"vertical" (y axis), "lateral" (x axis), and "horizontal" (z axis)
Step-by-step explanation:
It is a function because in a function the x's do not repeat. So since there are no two numbers in the x column that are the same, yes it is a function.
+3
The elevator went up 7 floors, making the current integer +7. The elevator then went down 4 floors, so 7 - 4 is 3. The final answer representing the change in floor level is +3 (positive three.)
The denominator in each term of the series is a square number, but neither

nor

are squares. So none of (1), (2), and (4) can be correct. The answer must be (3).
Answer:
false
Step-by-step explanation:
it fails the vertical line test, (x cannot be equal to 2 or more y values or its not a function)