Question

Help Proportional Relationships!

Answer 1

Relationships*

Answer 2

The simplest "proportional relationship" is y=kx, where k is a (constant). The graph of y=kx is a straight line that does NOT go thru the origin (0,0).

You are given four tables. Which of them satisfies the above definitions / explanations?

Answer 3

the first one does not go threw the origin

Answer 4

So not proportional for first one?

Answer 5

@mathmale

Answer 6

Yes, you're correct; the points given in the first table do not relate to a line that goes thru the origin. You still have to check out the other 3 graphs.

Please look up and type in the instructions for this problem. "Proportional Relationships" is not a question.

Answer 7

Is the second one not proportional?

Answer 8

I think the third is proportional.

Answer 9

And 4th is proportional? @mathmale

Answer 10

am i right?

Answer 11

By just looking at the common factors, how they can evenly go into each other, and cross mutiplying, then I'd say yes.

Answer 12

multiplying*

Answer 13

divide each y value by the corresponding x value
If its proportional each result of the division will be the same.

Answer 14

Precisely as welshfella said. Another reasonable and easy way is by dividing it, seeing if it can turn out to be the same total.

Answer 15

for example for D.
y/x = 1/2 , 2/4 , 3/6 and 4/8

are they the same?

Answer 16

Is this right?

Answer 17

@mathmale