Question

How many solutions are there to the following system of equations?
3x + 7y = –10
15x + 35y = –45

Answer 1

answers could be
0
1
2
infinitely many

Answer 2

the point the question is trying to make is

parallel lines have no solutions

and parallel lines have the same slope

divide the 2nd eqaution by 5

what do you get

Answer 3

i dont get it

Answer 4

ok
lets divide it

Answer 5

ok

Answer 6

15x/5+35y/5 = -45/5

can you do this??

Answer 7

-9 right

Answer 8

well 3x+ 7y = -9

Answer 9

so there is no soultion?

Answer 10

if yo subtract one equation from another you will end up with 0
or no solutions

Answer 11

ok thanks!

Answer 12

see no intersection --no solution

Answer 13

you are welcome