Question

HELPPP
Explain how the following ordered pairs represent or doesn't represent a function - {(–3, 5), (–2, 5), (–1, 5), (0, 5), (1, 5), (2, 5)}
a.
For every x value there is one y value - not a function
c.
For every y value, there is one x value - function
b.
For every x value, there is only one y value - a function
d.
For every y value, there is one x value - not a function

Answer 1

As long as each x value has only one y value, it's a function.
Eg (2, 1), (4, 6) is a function.

(2, 1), (2, 7) is not a function - when x=2, y is both 1 and 7.

Easiest way to check is just to look at the x values here (remember ordered pairs are given as (x, y) so x is the first number):
-3, -2, -1, 0, 1, 2

Notice that they're all different x values, so it's not even possible to have more than one y value for each x.

Answer 2

Understand...?

Answer 3

so A

Answer 4

@agent0smith

Answer 5

???????

Answer 6

If every x value has only one y value, it's a function. A doesn't say that.