I need help on algebra 1 graphing by the morning

sonicsfan

Hey
I cant figure these out and we have a test tomorrow in Algebra 1 over graphing.
I would greatly appreciate how I can figure these type of problems out.
If you give great info. that helps me tomorrow I might send you some cards!

x = 2/3y -4

-y = 2/3 +2

y = 3x

x = 3y

2x + y=0

2x + 2y=0

2y + x=0

NBAsteve

If im not mistaken you have to put them into slope-intercept form which is y=mx + b...once y is alone and you have it in this form you can find the slope and y-axis so they can be graphed...

m= slope and b= y intercept


For example: -y=2/3x+2 would become y=-2/3x-2.....graph up -2 for y and use -2/3 to get x also

ahendi

I took it last year. Hope this helps:

y = 3x for this y-intercept is 1, so put a dot on 1 on the y-axis. the slope is 3 so from 1 go up 3 and over to the right 1. repeat this and connect the line.

-y = 2/3 +2 for this multiply whole equation by negative 1 so the new equation would be : y=-2/3x -2. the y intercept is -2 so put a dot on -2 on the y axis and the slope is -2/3 so you would go up to the right 2 and to the LEFT (negative) 3 and repeat then connect the dots.


basically you want to get all equations so Y is by itself and with no number in front of it.

example:

x=3y divide equation by 3 to get y with no number in front. so y=1/3x y intercept is 1 and slope is 1/3 so go up one and to the right 3.

they are pretty easy once you know the jist of things.

batman34

I'm in Precalculus/trig and took a test today over graphing the trig functions and got a 94 percent, not to shabby so this stuff is cake for me.

On all of these you have to make sure y is by itself.

I was just going to say what ahendi said, but i wouldn't want to bore you, if you need anyhelp with the rest just say so

Jason

try helps me when my B*tch geometry teacher 'try's' to teach.
-Jason
Homework Help

sonicsfan

Thanks guys
I will take your info. and try to go study some problems

ilya

batman, same here..
i'm in precalc/trig (i'm in 10th grade)

that stuff is annoying! lol

all those sin/cos/tan but i still got 102.7% in class. lol

don;'t you just LOVE converting from Polar to Parametric?

batman34

damn ilya i'm in 11th grade and i'm a year ahead in math.

we having gotten that far yet. I've got a 99% in there, not to bad considering i barely pulled a B+ in the precalc part.

jbugs

lol, buy a graphing calculator and use the graph it give u or do what i do and copy off ur friends.

NBAsteve

lol @ jbugs

reddog

Can you guys formulate what the winning numbers are for tonight? It's up to $325 Million dollars down here.

batman34

I use that option but what if you can't use a graphing calculator on the test and you copy off your friends. Then you're screwed.

reddog

The Big Game Lotto.

Derrick

I think it's $325 million dollars here in Georgia...

Did you know that if you bought $75 million worth of tickets to obtain every possible number arrangement in the Georgia lotto for tonight's drawing that you'd definitely win it? If I had $75 million to spare, I'd definitely do this to recieve the $325 million.

$325 million - 75 million = 250 million

250 would be a whole lot better than $75 million...

danmarinocollector

whatever you do, don't copy off a friend that is dumber than you

SlipKnot515

<< <i>I think it's $325 million dollars here in Georgia...

Did you know that if you bought $75 million worth of tickets to obtain every possible number arrangement in the Georgia lotto for tonight's drawing that you'd definitely win it? If I had $75 million to spare, I'd definitely do this to recieve the $325 million.

$325 million - 75 million = 250 million

250 would be a whole lot better than $75 million... >>



derrick, taxes! taxes! taxes! lol, you wouldnt get nearly that much if you chose to take the lump sum of money, if you took it in installments, you wouldnt make your money as quickly, but hte taxes would be less...