How do you determine whether y=2x -1 is a linear equation. If so, write the equation in standard form?

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Answer 1 · 2016-11-23T08:04:27

$2x-y=1$

The equation of a straight line can be written in several forms.

$y = mx+c$ is one of them.
$y = 2x-1$ is in this form, therefore it is a linear equation.

It has an $x$ term, a $y$ term and a constant.

Re-arrange it to get standard form.

$2x-y =1$

Other forms are:

General form: $2x-y-1 = 0$
Slope-intercept form is $y=2x-1$