homework help!!

[sammy101]

i dont get this at all...so if you good in Algebra please help me!

Right now we are doing "Intercepts"and the question says to "Find the x-intercept of the line"
and im so confused on how to find it.
this is the first question

x - 2y = 4

HELP!!:eek:

[Laura's Babies]

Ha! I KNOW you are not asking ME!!!!:D :D :D I slept through all math classes, hated math, that is why I always have a caculator and I do ok with it until the batteries go dead! Sorry....:(

[doggylovr6]

ok, i can help you

x-2y=4
+2y+2y add 2y so you get the variable on 1 side and # on other
3y=4
/3 /3 now, since 3y is multiplying, divide 3

y=4/3


im really good at algebra so just private message me anytime




andrea

[doggylovr6]

Im not sure if thats it but im pretty sure, but im, yet agen, not shur, but uh, call this number, (562)-437-2859 is the Homework Helpline. so, good luck

[petslover]

If your looking for the X intercept, Always make the Y to a zero..

So the problem should look like this.

X- 2*0=4

2*0=0

x-0=4

add zero to 4 which makes

x=4

the intercept would be 4,0

okay I am pretty sure I am right, but If I am not please don't get mad!

if you need anymore help you can e-mail me at [email protected] or come back on here.

[AmberLee]

:confused: :confused:

Doesn't adding +2y to both sides of:
x-2y=4 give you

x=4+2y and not 3y=4 ????

Oops, never mind, the conversation continued as I was staring at the problem... :o

[petslover]

Well, I know this is the same lesson we went over today during Algebra and this is how the teacher taught it to us.. I noticed we posted that at the same time haha

[sammy101]

thanks!!:) i think i get it now,i have an extra math class so if i still dont get it ill ask my teacher tomorrow,grr i hate algebra,math in general,lol:rolleyes:

[petslover]

can you tell me what you came up with?? like the answer??

[ILoveMyAbbyGirl]

Yes, when finding the X-intercept, you make y=0.

So:

x - 2y = 4

x - 2(0) = 4

(2 x 0 = 0)

So then,:

x = 4

Put the point (4,0) on your graph, and that is the x-intercept. Trust me! I am in Algebra II and we just went over this. If you ever need help you can talk to me too!

(PS: To find the Y-intercept, do the same, except make X = 0.)

I love math. :D

[AmberLee]

Your response of 4,0 looks right to me, but my algebra days were YEARS ago... :o

[sammy101]

Originally posted by AmberLee
Your response of 4,0 looks right to me, but my algebra days were YEARS ago... :o

lol..this is my first year of Algebra(im in 9th grade) and i took Pre-Algebra in 8th grade,and i didnt learn much:rolleyes:

[doggylovr6]

i am in the seventh grade and im in algebra AB!!! i love math, i

love algebra, chemistry, english, history. I LOVE SCHOOL!! but yet

im not a nerd, i have a life!! i have a boyfrend and he is totally

hot!!!!!! 8 guys like me!!! so, yea, im totally a cool person if you

need anymore help with algebra, or any other subject. private

message me anytime!!!! or email me at

[email protected]

andrea

[doggylovr6]

Originally posted by AmberLee
:confused: :confused:

Doesn't adding +2y to both sides of:
x-2y=4 give you

x=4+2y and not 3y=4 ????

Oops, never mind, the conversation continued as I was staring at the problem... :o

yea but were trying to get y, not 3y, so you get rid of 3, since its multiplication, you divide it to get rid of it

3y=4
/3 /3 and the answer is y=4/3

[AmberLee]

Originally posted by doggylovr6
yea but were trying to get y, not 3y, so you get rid of 3, since its multiplication, you divide it to get rid of it

3y=4
/3 /3 and the answer is y=4/3

My point is that you DON'T get 3y=4 that way. You still have an x to deal with, too.

[swimma253]

hmm...

i just finished the algebra unit...
but I never did those "intercept" thing... Im only in 8th gade... what ggrade are you in?lol

[Tonya]

Haha, it's been 10 years since Algebra. I've forgotten it all. My hubby actually uses it on his job. He's the only adult I've ever heard of that actually still remembers and uses Algebra.

[BCBlondie]

Originally posted by sammy101
x - 2y = 4
To find the x-intercept, you have to find that value of x where y = 0 -- because at every point on the x-axis, y = 0.
So what ILoveMyAbbyGirl said should be correct. :)

[sammy101]

thanks for all your help!:D i got all my questions on my homework right

you guys are awesome:p