Calling all math whizzes

Dixie

Dixie

Farting Snowflakes
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I am loaded down all weekend with two weeks worth of homework to get caught up on and I am frying what is left of my brain cells on algebra. more linear equations to be exact.

The one I am currently stumped on is this: (it is a linear equation system ICK ICK ICK)
3x-4y=-22
-3x+y=0

I am supposed to find the x,y intercepts by substitution.

the farthest I got was:
y=0-(-3x)
so I subbed that for y in the other equation:
-3x+y=0
-3x-4(0-(-3x))=-22
-3x-0-12x=-22
-15x-0=-22
-0 -0
-15x=-22
-15x/-15=-22/-15
x=1.4

Something tells me I did this incorrectly somehow because its not making sense as in the x value should be a whole number.

The direct instructions from the book are the following:
Sove each system by substitution. If the system is inconsistent or has dependent equations say so.
 
I just cross this last week in college.

I help you to start like this. :)
y=3/4x + 11/2

y= 3x

I am sure you can figure it out. :P
i dont want to help too much.
 
Im not complaining about too much help! :P :lol:

But that should get me off to a start on the equation.
 
where did you come up with y=3/4x+11/2 from
3x+4y=-22
-3x+y=0

as well as y=3x?? (Im thinking I never should have picked the class back up! Im way better at comp but this is due Monday - ICK!)
 
Dixie said:
where did you come up with y=3/4x+11/2 from
3x+4y=-22
-3x+y=0

as well as y=3x?? (Im thinking I never should have picked the class back up! Im way better at comp but this is due Monday - ICK!)
Click to expand...

I putting it easy for you.

3x+4y= -22 ok

3x+4y=-3x -22

4y= -3x -22

y= -3/4x - 22/4
now to reduce

y= -3/4x - 22/4

y= -3/4x-11/2
-----------------------------

-3x+y=0
y= 3x+0 or y= 3x
 
Thank you, I like easy! That was much better - I think Ive figured it out - I was just looking at the problem wrong.
 
Dixie said:
Thank you, I like easy! That was much better - I think Ive figured it out - I was just looking at the problem wrong.
Click to expand...

I will make thread for y'all to drop problem for me, i will help you all
 
The ordered pair I got was [(1.46,-4.38)] is this right or have I lost my mind?
 
I have lost my fucking mind. *chucks homework and books across the room*


Anyone here care to make a few extra bucks???
 
Yes she wants a graph unfortunately.
 
Ive since put away the math for the day. 6 hours? Come on, this is fucking ridiculous. Im better off paying someone to do the homeworks for me, and then I can bomb the tests and still come out with a C average. I can blame the poor test scores on test anxiety.
 
College and taking algebra? Weird I took algebra II in junior year I was supposed to take algebra in 5th grade but damned teacher forced me to repeat pre-algebra 4 times because they don't have "resource" at school so I started it at 9th grade then geometry then alg 2 let say I was bored to death and doesn't even need to pay attention to teacher or do homework and get 90-100% on all test, ugh... and also they offer me to skip grades but my mom said NO without asking me pissed me off to end of the world.
Hence the reason I dropped out of school, tired of them screwing with me
 
SkullChick said:
College and taking algebra? Weird I took algebra II in junior year I was supposed to take algebra in 5th grade but damned teacher forced me to repeat pre-algebra 4 times because they don't have "resource" at school so I started it at 9th grade then geometry then alg 2 let say I was bored to death and doesn't even need to pay attention to teacher or do homework and get 90-100% on all test, ugh... and also they offer me to skip grades but my mom said NO without asking me pissed me off to end of the world.
Hence the reason I dropped out of school, tired of them screwing with me
Click to expand...

I had a similar upbringing. As you may or may not know, my father is a teacher in the same school district I went to school in.

Every year when it came time to sign up for classes and what not, I would sign up for the regular math classes that my brother was taking. And dad would ask to see the schedule, then he would scratch out the Algebra go to the counselor tell her I was basically too stupid for algebra and I was placed in remedial math courses. Meaning I never actually took a regular math class past the 8th grade. It was all remedial math shit. This is why my math functioning level is that of a middle schooler.

But get this, during my senior year dad found out that if I took a regular math class that year that I would likely qualify for the Governor's Scholarship. Well he expected me to go from a remedial math course straight into Algebra II. I took one look at him and said hell no, I am not going to do this on your 'advice' only to flunk it then get screamed at that Im not passing.

During my 4th-6th grade years I remember my mother and I sitting in the kitchen slaving over homework for HOURS on end. I wasnt actually helped, I was told that I wasn't trying (when I really was) and I would get privileges taken away if I got a bad grade. I recall one night it got so bad that my mom looked right at me and said 'If you dont look at what you are doing, I am going to knock you in the face!' and she meant every word of it. Well I tried again and I got the problem wrong again then she slammed the book shut, threw it across the room got up and left. After that I just never bothered to ask her to help me with math ever again. Actually that was the last time I asked anyone within the family to help me with any type of homework. My parents refused to get me a tutor because it was 'too expensive'.
 
damn.... well you've got yourself a handful of free tutor in here! :cool2: btw - long time no hear (errr.... read) in AD! :wave:
 
A good teacher would show how easy this is. Guess you had lousy ones. :( I solved it by typing it out in Notepad and confirmed it by finding the intersections of those two lines with my TI-86, which I used in high school and university.
 
I know it should be 'easy' but for me, even elementary math is a struggle. It took me 6 hours to work through 12 problems and Im sure less than half are actually correct.
 
however composition and writing come quite easily for me so Im not too discouraged ATM. (my last paper I turned in for composition got an 88 for a grade.)
 
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