Question

How many solutions will the following system of linear equations have?
–2x + 4y = –7
y= -1/2x+5
A. 0
B. 1
C. 2
D.infinite

how do i do the math for this??

Answer 1

Hold on :)i have this.

Answer 2

im sooo bad at math.. its not even funny

Answer 3

@jenna1420 You have to try.

Answer 4

I see you are not going to try.

Answer 5

basically, all you have to do is put your equations given in y = mx + b form
then compare the slopes (m) and the y intercepts (b).

if the slopes are the same and the y intercepts the same, then there is infinite solutions
if the slopes are the same and the y intercepts different, its a parallel line with no solutions
if the slopes are different and the y intercepts different, then there is 1 solution

Answer 6

i was trying it but it kind confused me lol but thanks texaschic.. i didn't know which formula to use :] that helps

Answer 7

you can also do it the way @DivineSolar said

Answer 8

and @DivineSolar you helped also.. but like i said im bad bad at math
so when i tried doing it your way i got confused... thank you both tho! :}

Answer 9

Alright. Sure thing.

Answer 10

I'm not sure but i did the math and i got B

Answer 11

i got no solutions..

Answer 12

and @DivineSolar you helped also.. but like i said im bad bad at math
so when i tried doing it your way i got confused... thank you both tho! :}

Answer 13

the answer is B i checked my work