Question

I need help please!!!!!
The table shows the values of y for each value of x:
x-y
2-1
31
4-negative 3
5-negative 3

Part A: Does the table represent a relation that is a function? Justify your answer by using the values shown in the table.

Part B: The function f(h) shown below represents Kylie's total earning from working in a cafe for h hours of work:

f(h) = 15h + 5

Calculate and interpret the meaning of f(8)?

Part C: Write an ordered pair to represent the input and output of the function in Part B when Kylie works for r hours.

Answer 1

`Part A: Does the table represent a relation that is a function?`

ask yourself this: are there any repeating x values? if so, then you won't have a function.

eg: (1,2), (1,7), (3,9) has x = 1 repeating twice. So this isn't a function because any given x value must produce exactly one output y value

Answer 2

does that make sense?