CHECK MY ANSWER PLEASE.
Solve 3x - 5y = 17
9x - 15y = -4
A. (-1, -4)
B. (4, -1)
C. No Solutions
D. Infinitely Many Solutions

Question

CHECK MY ANSWER PLEASE. 
Solve 3x - 5y = 17
9x - 15y = -4
A. (-1, -4)
B. (4, -1)
C. No Solutions
D. Infinitely Many Solutions<---- 
I worked out a and b and they don't work so I think it's D

directrix · Answer

3x - 5y = 17 --Multiply by 3 -->  9x - 15y = 51

                                                      9x - 15y = -4

Note that the second equation has the same left side as the first. The constant terms on the right are different.

What does that mean?

anonymous · Answer

That there are no solutions?

directrix · Answer

Correct. If you graph the lines, you will see that they are parallel and do not intersect. So, no solution.

anonymous · Answer

@Directrix

anonymous · Answer

Thank you!! Could you help me with a few more? I don't know how to do one with a fraction

directrix · Answer

Close this thread and open a new one with the new question. I'll try to help.