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January 28, 2015

January 28, 2015

Posted by **trudy** on Thursday, October 7, 2010 at 11:05pm.

In a function when you see f(x) it just means "y." So we have an equation y = 2x + 3 and a function that is

f(x) = 2x + 3. When graphed, they both look like the same line.

What makes these a linear equation or a linear function? How can we tell if they are linear?

- college math 116 -
**Trinh**, Thursday, October 7, 2010 at 11:11pmThe "x" is the one make a linear function or equation. Cuz x is independent variable and we just plug it in equation to find y or f(x).

Linear equation has formula: y=ax+b

Unlike parabola: y=ax^2+bx+c and so on.

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