Question

Points C and D lie on graph of the equation y=1.3x.
What are the y-coordinates for each point?
Point C: (3,__) Point D: (−6,__)

Answer 1

@malcolmmcswain

Answer 2

Ok, so if we know x, it's easy to solve for y. All we have to do is plug it into the equation.

Answer 3

My possible answers were point c (3,3.9) point d (-6,-7.8)

Answer 4

For C:
y=1.3x
y=(1.3)(3)
y=3.9
So, C: (3,3.9)

Answer 5

So C is correct! Good job! Now let's find D

Answer 6

For D:
y=1.3x
y=(1.3)(-6)
y=-7.8
So, D: (-6,-7.8)

Answer 7

Awesome! You got them all right!

Answer 8

yay i got them right!

Answer 9

can you help me with a few more?

Answer 10

Do you understand how to solve for it now?

Answer 11

yes i do!

Answer 12

I'd be happy to help you with some more! If I'm helping you, I hate to bug you, but a medal means a lot to me, it helps boost my score and gives me motivation to answer more problems, and all you have to do is press a button. So, if I'm helping you, please press the "best response" button next to my name!

Answer 13

Cora is graphing the equation y = 12x. She has placed a point on the origin and uses the slope to find 2 more points.

Which points does Cora plot on her graph?

Choose exactly two answers that are correct.

A.
(−1, −12)

B.
(−12, −1)

C.
(1, 12)

D.
(12, 1)
and ok ill give you a medal!

Answer 14

Ok, so all we have to do here is what we did in the above question. In this case we know both y and x, so we just have to find which of these work out.

Answer 15

oh ok i thought i had to write down a whole graph thingy! XD

Answer 16

For A:
x=-1, y=-12
Our equation is:
y=12x
So, our question is, does 12 times -1 = -12?
Yes, it does!
So A. is a solution to the graph y=12x

Answer 17

ok thx but theres more than one answer though

Answer 18

For B:
x=-12, y=-1
Our equation is:
y=12x
So, our question is, does 12 times -12 = -1?
No, it doesn't... :(
So B. is not a solution to the graph y=12x

Answer 19

oh i thought you did know ( that there were more answers) XD

Answer 20

For C:
x=1, y=12
Our equation is:
y=12x
So, our question is, does 1 times 12 = 12?
Yes, it does!
So C. is a solution to the graph y=12x!

Answer 21

We've found them all! But just to be sure, let's do D.

Answer 22

then that means that d is not answer

Answer 23

For D:
x=12, y=1
Our equation is:
y=12x
So, our question is, does 12 times 12 = 1?
No it doesn't! We did it!

Answer 24

i have got 3 more questions for you if you dont mind! if you want i can also open another question so you can get more medals!

Answer 25

Please do! That would be great.

Answer 26

I am always happy to help!