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

–2x + 4y = –7
y=-1/2x+5

Question

How many solutions will the following system of linear equations have?

–2x + 4y = –7
y=-1/2x+5

anonymous · Answer

sorry. dont know this one ;/

anonymous · Answer

-2x + 4y = -7
4y = 2x - 7
y = 2/4x - 7/4
y = 1/2x - 7/4
slope here is 1/2 and y intercept is -7/4

y = -1/2x + 5
slope here is -1/2 and y intercept is 5

Learn this...
if the slopes and the y intercepts are the same, then the lines will have infinite solutions
if the slopes are the same and the y intercepts are different, then there is no solution
if the slopes and the y intercepts are different, then there will be 1 solution

so what do you think ?

anonymous · Answer

darn it, dont worry thanks for trying @kelliee

anonymous · Answer

still not sure,,,.. @kelliegirl33

anonymous · Answer

its not infinite

anonymous · Answer

you have slopes that are different and y intercepts that are different. That means there is 1 solution.

anonymous · Answer

its 1

anonymous · Answer

correct. 1 solution because the lines will intersect in exactly one spot (x,y)

anonymous · Answer

I get it now, thank you for you explanation !!

anonymous · Answer

no problem...you need to learn it from somewhere. At least just to get out of high school

anonymous · Answer

yes sigh