Shi-

[Ikith]

Ok so theres a math test I'm in the middle of and its covering something we never went over in class... its solve and graph... I went over it last night a little bit but these problems arent even the same as the ones I went over... its has >= on top of eachother. Ugh I have til 12:30 to figure this shit out please help me bg... I cannot fail this test.

[Keno]

Ok so theres a math test I'm in the middle of and its covering something we never went over in class... its solve and graph... I went over it last night a little bit but these problems arent even the same as the ones I went over... its has >= on top of eachother. Ugh I have til 12:30 to figure this shit out please help me bg... I cannot fail this test.

Camera phone pic the question and upload it here.

[Ikith]

Gah can't I was thinking about that then she took the test and said come back at 12:30 !

I'm boned if no one can tell me there are like 5 problems like that each 5 points >.>

[Exoduso]

Are you that bad at math? lol.

[Ikith]

Dude I wasn't in high school i dropped and took my ged and passed it and now I have to take Math 86 to get into the program I want to get into and just shuddup seriously dude I'm terrible at math and I'm a wreck right now! I just wanna know how to do this so I can pass this damn test and then I need to study more ugh!

[DarktaruFM]

can you at least post the problems?

[Ikith]

Solve and Graph
7x -3 >(with the equals sign) 9x+4

I know in a simple problem like

7x -3 you would plug in numbers that they give u and graph

x|y
----
0|
1|
2|
3|

Like so but now I'm thinking its the same think amiright?

[Turmoil]

7x-3 (greater or equal to) 9x+4 you mean?

[Ikith]

7x-3 (greater or equal to) 9x+4 you mean?

Correct

[Gafgarionn]

x less than or equal to -7/2 (-3.5)
draw a vertical line at -7/2 (not dotted, solid)
shade left part

edit: i'm retarded

[Minions]

7x-3 >= 9x+4
-7x -7x
-3>=2x+4
-4 -4
-7>=2x
/2 /2

-3.5>=x
no?

rearange so it looks better

x<=-3.5

draw a line @ -3.5 and shade below it

[Turmoil]

7x-3 >= 9x+4
-7x -7x
-3>=2x+4
-4 -4
-7>=2x
/2 /2

-3.5>=x
no?

rearange so it looks better

x<=-3.5

draw a line @ -3.5 and shade below it

We have a winner

[Annihilator]

resolve your equation first as if it only had an equal sign
(its been a while so disregard any noob calculation mistakes ^^

7x-3 >= 9x+4

-2x -3 >= 4
-2x -7 >= 0

once you have this, plug the values in your graph just like if you had only an equal sign

once you have your line, the "greater than" simply means that you color either the half below that line, and voilà


EDIT
beat me to it

[Minions]

Its a verticle line at -3.5, which is not a function as it fails the verticle line test ( has more than one y for each x)

[Gafgarionn]

7x-3 >= 9x+4
-7x -7x
-3>=2x+4
-4 -4
-7>=2x
/2 /2

-3.5>=x
no?

rearange so it looks better

x<=-3.5

draw a line @ -3.5 and shade below it

We have a winner

can't shade below it, as it's a vertical line. think he gets the point, though.

[Akiyama]

Watching all this maths makes me miss school.


I honestly forgot how to graph equations like that until I read over Minion's problem solving. Heh, refreshed the memory for me.

[Exoduso]

This stuff used to be the easiest shit in Algebra... god I miss the days when school was that easy.

[Demosthenes11]

lol
While I'm stuck staring at a problem asking for the length of a string of a pendulum after only been given the distance, I suddenly feel a lot better

[RuBP]

lol
While I'm stuck staring at a problem asking for the length of a string of a pendulum after only been given the distance, I suddenly feel a lot better

That's an easy problem also unless you're doing real physics?

[Lbelle]

We need an Ikith HW Questions thread so he can post all his HW questions!

Or a general HW thread so everyone can ask HW questions.