Posted by shelly, k on Sunday, May 25, 2008 at 3:36pm.
I have no classmates and I didn't read your chapter 3.
All linear equations are functions. Good luck with the rest of your assignment. If you have more specific questions, please try again.
First, what is a function? In Cartesian mathematics, a function is an expression which, for any value of x, there exists one and only one value of y. A function can be either a straight line (linear) or a curvy line (non-linear).
If you look at a linear equation graphically, you will see a straight line, so all linear equations are functions.
A non-linear equation, such as y = x˛, is a function, though not a straight line, because for any value of x there exists one and only one value of y.
An example of a non-function would be y = ± x. In this case, for any value of y, there exists two values of x. Therefore, it is not a function.
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Hot water is heavier by volume than cold water.
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Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
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