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what are the coordinates of the x- intercept of the line 3x4y=12

I know what the answer is (4,0) but why?

to get x-intercept, put y=0 in line 3x+4y=12

to find the y-intercept, just plug in x = 0 and solve for y

Thank you Thank you for your help :)

do you mind giving me a practice problem? So I can figure it out myself i really appreciate it

find the y-intercept of 5x + 10y = 30

just make up one please :)

to get y-intercept, put x=0 in 5x+10y=30

since my test is multiple choice can you give me answers to choose from?

not required, but sure,
1) (0,-3)
2) (0,3)
3) (3,0)
4) (0,6)

having problems ?

yes i got x=10?

I suck at math

how you can get x=10 when i told you to put x=0 to find y-intercept :O

i have no idea why

one sec

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can you find y from 5(0)+10y=30 ?

sorry i got it though it would be (3,0) yes

yes its (0,3)

now its correct :)

want more examples?

yes please and thank thank you for helping me :)

I actually understand it now!!

oh, you are welcome :)
find x intercept of the line 2x+3y = 7
this involves fraction....

try first without choices

okay ill try it :)

okay i know this is wrong but is it (0, 2 1/3)

to find the x-intercept, you plug in y = 0
not x = 0

to get x-intercept, you need to put y=0, right ?

oh wow okay one sec sorry its late

no problem, take your time :)

alright is it (0, 3 1/2) btw thanks for your patience math is just really not my subject :/

2x+3y = 7
2x+3(0) = 7 ... plug in y = 0 (not x = 0)
2x + 0 = 7
2x = 7
x = ???

No way i got it right and yes :) (3 1/2,0)

yes, now (3 1/2,0) is correct :)

i am glad to hear that :) and you are most welcome ^_^