Question

helplp?

Answer 1

What do you think?

Answer 2

i would say D

Answer 3

but i dont really know for sure i only say D because their is no -

Answer 4

If only positive values could be functions, then this wouldn't be a function

Answer 5

Ever heard of the vertical line test?

Answer 6

yeah

Answer 7

yeah make a straight line and see if it passes it

Answer 8

Well particularly for functions, you can use this to test if a line is a function. Draw a vertical line through various points on the graph, and if it intersects the line more than once, then it isn't a function.

Answer 9

That's because two different y intercepts would be giving the same x intercept, which means it isn't a function.

Answer 10

So either b or c

Answer 11

i forgot whichs one x and y

Answer 12

Just read the axis points

Answer 13

y= straight x=down?

Answer 14

Oh

Answer 15

Y is vertical (up and down), x is horizontal (left and right)

Answer 16

ooh its C?

Answer 17

If two points have the same y value, it would look like this.



They have the same 'elevation' or they're on the same floor of the building.

Answer 18

Or a better analogy would be, you're looking for people that are in the same building, but one different floors.

Not in different buildings, but the same height or floor level.

Answer 19

but they have the same y

Answer 20

Y is up and down

Answer 21

yea and they are on the same line for up and down

Answer 22

For the question graph?

Answer 23

yea

Answer 24

Yeah but are they at the same elevation

Answer 25

which would make it c

Answer 26

Think about it for a second. Your house has two floors. Your brother is directly below you and on the first floor. You're on the second floor. You both have the same x coordinate. But you have a different y coordinate, because you're higher up.

Answer 27

Same point on the x axis, two different points on the y axis

Answer 28

oooh so only half is x? and half is y?

Answer 29

I guess that's one way of thinking of it. Y is vertical axis, x is horizontal axis.

Answer 30

ohh so b

Answer 31

Correct

Answer 32

thanks you sm

Answer 33

You're welcome