Points A and B lie on the graph of the equation y = 7x.

What are the y-coordinates for each point?

Point A: (−2, ? ) Point B: (4, ? )
I thought for A it would be -14 and for B it would be 28, I think i might be doing something wrong here?

Question

Points A and B lie on the graph of the equation y = 7x.
 
What are the y-coordinates for each point?
 
Point A: (−2, ? )     Point B: (4, ? )
I thought for A it would be -14 and for B it would be 28, I think i might be doing something wrong here?

xapproachesinfinity · Answer

well that pretty easy
just plug in the x value  to get the y value
since both point lie on that line

anonymous · Answer

I think im right, I just multiplied -2 and 4 by 7

xapproachesinfinity · Answer

for x=-2
y=7(-2)=-14

xapproachesinfinity · Answer

oh i didn't see your comment above
you got the right answer^_^

anonymous · Answer

Oh c:
I was just checking, i have a long line of questions, i dont wanna take the test all over again with new questions o_O