Question

. What is the range of the relation?

{(1, 2); (2, 4); (3, 2), (4, 4)}

Answer 1

The range of a relation is all the "y" values in the collection of (x, y) ordered pairs. Big hint: you have only 2 different values for "y" (second number in each ordered pair). With that information, you should be able to assess what those values are.

Answer 2

just list your y values just like tcarroll010 stated above

Answer 3

All good now, @needhelp4555 ?

Answer 4

yeah i got (1, 2); (2, 3); (3, 4); (4, 5)}
is that right

Answer 5

You have a list of four points, all in the form (x, y). You want only the "y" portion, not the "x". You have to strip the "x" s away. Throw them out. Disregard them. Don't include them. Take each point one by one, and just take the "y" value. That's the second in each pair.

Answer 6

okay so it is {2, 4}

Answer 7

You got it!

Answer 8

ok thankss!!

Answer 9

can you help me with this one Which relation is a function?

{(1, 2); (2, 3); (3, 4); (4, 5)}

{(1, 2); (1, 3); (1, 4); (1, 5)}

{(1, 2); (2, 3); (3, 4); (2, 5)}

{(1, 2); (3, 2); (3, 3); (4, 2)}

Answer 10

Only the first one is because for that selection, you have no more than 1 "y" value for each "x". In all the others, there are multiple "y" values for a given "x".

Answer 11

Any more questions, just start a new post after closing out this one.

Answer 12

okk thanks and yess i will start a new post

Answer 13

uw!

Answer 14

can you go check out my other question

Answer 15

you can also, plot your points and do a vertical line test to see if it is a function

Answer 16

If the vertical line crosses 2 points, then it fails the vertical line test