i dont understand?

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Label each of the following as an expression, a linear equation, or an equation that is not linear.

1. 5x-3=12
2. x+5=13
3. 2/x-4=3x

please help.

2007-06-06 15:54:08 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

The first two are linear equations. The last one is a quadratic equation (equation that is not linear):

(2/x) - 4 = 3x
(2 - 4x)/x = 3x
-4x + 2 = 3x^2
3x^2 + 4x - 2 = 0

You can anyway tell that they're all equations since they equal something.

2007-06-06 16:28:40 · answer #1 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋

All are equation. The last one is not linear

Ana

2007-06-06 23:09:28 · answer #2 · answered by MathTutor 6 · 0⤊ 0⤋