whys is it dat x to the second power is not a linear equation???
2007-09-25 11:58:58 · 18 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
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2007-09-25 12:01:03 · answer #1 · answered by LongShot™ 6 · 0⤊ 4⤋
Here's what'll get you really pissed off. Some people would say it was, some people would say it wasn't. "linear equation" means different things to different mathematicians.
Anyways, the most obvious thing though is that if you drew a graph of this, then it wouldn't form a straight line.
What most people mean when they say 'linear' equation is that the graph would be a straight line.
An answer with a bit more maths in: A 'linear equation' is one where no matter what x you start with, you'll get the same increase in y for a particular increase in x. (e.g. a line where if you add 3 to x, then y gets 5 bigger, whatever numbers x and y were to start with.)
An answer with fancier maths in: A linear equation is one where the rate of change of y with respect to x is a constant.
All three answers actually mean the same thing. And none of them are true for the equation you wrote.
2007-09-25 12:14:08 · answer #2 · answered by Douglas W 2 · 0⤊ 0⤋
A linear equation is an equation in which each term is either a constant or the product of a constant times the first power of a variable. Such an equation is equivalent to equating a first-degree polynomial to zero. These equations are called "linear" because they represent straight lines in Cartesian coordinates.
So now you understand why that is not a linear equation? The equation you have given doesnot represent a straight line, does it?
2007-09-25 12:07:02 · answer #3 · answered by truthseeker 2 · 1⤊ 0⤋
x^2 isn't a linear equation because, well, it's not an equation!
However I'm going to assume you meant the question in the subject line. x^2 + 5y = 0 is not linear because of the exponent in x^2. Linear equations can only be in the form of aA + bB + cC + ... = 0 where the lower-case letters are constants and the upper-case are variables.
2007-09-25 12:04:49 · answer #4 · answered by Anonymous · 0⤊ 1⤋
A "linear" equqtion... that is, the equation of a straight line is of the form y=mx+b where m is the slope... a constant slope indicates a straight line
If, however, if the slope of the line changes, the line must curve... or at least bcome non-linear.
In the equation, y=xx + b, the slope is effectively = x Therefore, as x varies, so does the sope.... again... varying slope... non-linear equation.
2007-09-25 12:09:10 · answer #5 · answered by gugliamo00 7 · 0⤊ 0⤋
sure that is. linear equation is probably going one among the equation that the mathematics have as linear equation had a distinctive working. Y=MX+C...ur c = 4 and m=2...x isn't given and could remedy it urself as a fashion to discover y.So that is authentic that that is a linear equation
2016-10-19 23:35:01 · answer #6 · answered by marolf 4 · 0⤊ 0⤋
because x^2 is makes the line actually a parabola. A linear equation is for straight lines and since a parabola is circular, it is not a linear equation.
2007-09-25 12:01:43 · answer #7 · answered by Philip S 4 · 0⤊ 0⤋
Because X^2 is a quadratic equation
2007-09-25 12:01:51 · answer #8 · answered by dvessels 2 · 0⤊ 0⤋
no its not a linear equation. Though you might want to write to a 'phd' and ask him if in a field of R2 if this is linear.
2007-09-25 12:07:59 · answer #9 · answered by jon d 3 · 0⤊ 0⤋
this is a quadratic equation, a linear equation has no indices, quadratic is when the is something square...
2007-09-25 12:02:20 · answer #10 · answered by pwincess_laroosh 2 · 0⤊ 0⤋
It's a quadratic equation.
How:
x^2 ---------> x = 2
2 ^2 = 4 ( 1, 4)
x = -2
-2^2 = 4 (-1,4)
2007-09-25 12:01:46 · answer #11 · answered by Ghuijakdan 2 · 0⤊ 0⤋