Question

PLZZZZZZ answer these questions

How do you figure out if a relation is a function?
How do you find function tables with problems such as y=4x- 1 and y= 1/2 x +5?
How do you find Functions representing values in a table?
How do you find Slopes in Coordinate planes?

These aren't real questions on a paper, but I need these answers to help me on something.

Answer 1

for the last question, there is a slope calculator on the internet that could help with that