Question

How do you find the slope and y intercept of `2x-y= 1`?

Answer 1

`"slope "=2," y-intercept "=-1`

Explanation:

`"the equation of a line in "color(blue)"slope-intercept form"` is.

`•color(white)(x)y=mx+b`

`"where m is the slope and b the y-intercept"`

`"rearrange "2x-y=1" into this form"`

`"subtract "2x" from both sides"`

`cancel(2x)cancel(-2x)-y=-2x+1`

`rArr-y=-2x+1larrcolor(blue)"multiply through by "-1`

`rArry=2x-1larrcolor(blue)"in slope-intercept form"`

`"with slope "=2" and y-intercept "=-1`