View Full Version : Difference linear and quadratic equation?
al-habsi
Jul 24, 2009, 12:01 PM
I need a help in this question
Explain the difference between linear and quadratic equation?:confused:
Unknown008
Jul 25, 2009, 01:34 AM
A linear equation has as highest power of x, 1. A quadratic equation has an x of power 2.
al-habsi
Jul 26, 2009, 08:10 AM
Is there any more diffrence?
Unknown008
Jul 26, 2009, 08:33 AM
A linear equation is a straight line, whereas a quadratic equation is a curve.
A linear equation has a fixed gradient but a quadratic equation has a gradient which keeps on changing.
A linear equation has no turning (or stationary or maximum or minimum) but a quadratic equation has.
EDIT: Of course, all these are true provided the equations are on the same axis, and they are no modulus functions.
fuzzychin
Jul 26, 2009, 08:56 AM
is there any more diffrence?
No.
fuzzychin
Jul 26, 2009, 09:03 AM
A linear equation is a straight line, whereas a quadratic equation is a curve.
A linear equation has a fixed gradient but a quadratic equation has a gradient which keeps on changing.
A linear equation has no turning (or stationary or maximum or minimum) but a quadratic equation has.
This very much depends on the axes of the graph o_O
If one axis is x^2 and one is just x, then a quadratic graph will be straight... Sorry to be penickity!