usualy were given an equation thats in y=mx+b form and we have to right it into standerd form can you please tell me how and example it for me please?thanks! i know it ax+by=c but how do you do it....thankS!
2007-02-14 11:51:06 · 6 answers · asked by roger c 2 in Education & Reference ➔ Homework Help
3 rules for standard form:
A has to be positive
A can't be a fraction
All terms must be on the left hand side of the equation which is set equal to 0
eg.
y = 4x - 7
move the y to the right side of the equation
0 = 4x - y - 7
switch the sides of the equation
4x - y - 7 = 0
2007-02-14 11:56:06 · answer #1 · answered by lfchockey97 2 · 0⤊ 0⤋
I found this website that answers your question. Even lays it out in a very simple form. Please check out the website listed below.
Someone asked the same question and here was -Doctor Robert, at The Math Forum's answer.
An awful lot of algebra involves sets of ordered pairs. I assume that you know how to graph ordered pairs on the x-y plane. (The horizontal axis is the x-axis while the vertical axis is the y-axis.) Consider the following ordered pairs (0,1), (1,3), (2,5)(,3,7), (4,9), etc.
You will notice that a rule which relates each of the numbers in the ordered pairs is y = 2x + 1
The rule says, take the value of x, multiply it by 2 and add 1 and you have the value of y! If you draw the straight line that contains all of the ordered pairs above, you will notice that the line has a slope of 2 and that it crosses the y-axis at 1. So, if you are given an equation in the form y = mx + b, you know that the slope of the line is m and that the line crosses the y-axis at the number b. I hope that this helps.
2007-02-14 20:03:46 · answer #2 · answered by Silly Girl 5 · 0⤊ 0⤋
This is y intercept form to standard form, right?
ok.. y= mx+b. take the "y" value and bring it to the opposite side of the equation. (in other words, subtract 'y' from both sides).
mx+b-y=0
now get rid of any existing fractions by multiplying by the lowest common denominator.
2007-02-14 20:06:00 · answer #3 · answered by DrummerGirl 3 · 0⤊ 0⤋
get x and y on the same side
Ex. y=2x+4
1. Subtract 2x
New Equation: 2x+y=4 -------- Answer!!!
2007-02-14 20:01:56 · answer #4 · answered by ☺Nick☺ 2 · 0⤊ 0⤋
I think you need to learn how to spell first. Also do your own homework. Why don't you pay attention in class, that is why the teacher/professor speaks.
2007-02-14 20:00:09 · answer #5 · answered by A* 1 · 0⤊ 1⤋
not right ---- its write man!!!!
you can write:
by = c-ax
y = (c-ax) / b
2007-02-14 19:55:33 · answer #6 · answered by JiveSly 4 · 0⤊ 0⤋