Question

How do you write an equation of a line in slope intercept form if the line has a slope of 2 and contains the point `(1,-2)`?

Answer 1

`y=mx+b ->`Slope intercept

`m=`slope
`b=` y-intercept

`(x,y)->` the point

Make the substitutions to find the y-intercept, `b`

`-2=(2)(1)+b`

`-2=2+b`

`-4=b`

`y=2x-4`