Question

How many solutions will the following system of linear equations have?

–2x + 4y = –7

A.
0
B.
1
C.
2
D.
infinite

Answer 1

is there another equation ?

Answer 2

no

Answer 3

then that is not a system

Answer 4

Just kidding my page didnt load all the way

Answer 5

lol...you made me think I was going crazy

Answer 6

the other equation is y= -1/2x+ 5

Answer 7

y = -1/2x + 5 --- slope is -1/2

-2x + 4y = -7
4y = 2x - 7
y = 2/4x - 7/4
y = 1/2x - 7/4 --- slope is 1/2

different slopes, different y intercepts.....means 1 solution

just so you know..
same slope, different y intercepts = no solution or 0
same slope, same y intercept = infinite solutions
different slopes, different y intercepts = 1 solution