Question

How do you write an equation of a line with Slope = 4, passing through (1, 3)?

Answer 1

In general the point-slope form for a line through a point `(hatx,haty)` with a slope of `m` is
`color(white)("XXXXX")` `(y-haty)=m(x-hatx)`

For the given point (`1,3)` and slope `4`, this becomes
`color(white)("XXXXX")` `(y-3) = 4(x-1)`

While the above is a complete solution to the question, you might want to write this as
`color(white)("XXXXX")` `y = 4x -1`
`color(white)("XXxxxXXX")`or
`color(white)("XXXXX")` `4x+y = 1`