Question

How do you find the slope of 3x+y=7?

Answer 1

Slope of `3x+y=7` is `-3`

Explanation:

Method 1
The slope of a linear equation in standard form:
`color(white)("XXXX")` `Ax+By = C`
is `-A/B`

Method 2
`3x+y=7` can be converted into slope intercept form:
`color(white)("XXXX")` `y = -3x +7`
where a linear equation in slope-intercept form
`color(white)("XXXX")` `y = mx +b`
`color(white)("XXXX")` `color(white)("XXXX")`has a slope of `m`
`color(white)("XXXX")` `color(white)("XXXX")`and a y-intercept of `b`