Question

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

Answer 1

`-1`

Explanation:

`x+y=7`

`implies y=-x+7`
`implies y=(-1)x+7`

If `y=mx+c` is an equation then `slope=m and c=`y-intercept

Here `y=(-1)x+7`

`implies slope=-1` and y-intercept`=7`

Hence slope of the line is `-1`