I WILL GIVE MEDALS!!!!
What is the x-intercept of the line with the equation ?
1/3x+y=-15

Question

I WILL GIVE MEDALS!!!!
What is the x-intercept of the line with the equation ?
1/3x+y=-15

dtan5457 · Answer

Ok, isolate y.

y=-15-1/3x

To get the x intercept, y must be 0

0=-15-1/3x

solve for x.

15=-1/3x

x=?

anonymous · Answer

how do I do that?? I'm clueless.

dtan5457 · Answer

15=-1/3x

what number times -1/3=15..?

anonymous · Answer

do I turn the fraction into a decimal??

dtan5457 · Answer

you really don't have to. 

15=-1/3x

divide both sides by -1/3

anonymous · Answer

5?

dtan5457 · Answer

no, try again...the number should be bigger than 15 AND negative.

texaschic101 · Answer

to divide fractions, flip what you are dividing by, then multiply

anonymous · Answer

I'm still not getting it. sorry I'm terrible at math.

texaschic101 · Answer

15 = -1/3x --- we have to divide both sides by -1/3 to get x by itself

15/(-1/3) = x -- now flip what you are dividing by and multiply

15 * -3/1 = your answer...can you multiply them ?