Question

How do you write the equation in point slope form given point (2, -1) and has slope 3?

Answer 1

`y = 3x - 7`

Explanation:

`y - y_1 = m(x - x_1)`

is the standard equation for a line in point slope form.

We are given the gradient, `m = 3`, and the point `(2, -1)`, which we can plug in and solve

`y - y_1 = m(x - x_1)`
`y - (-1) = 3(x - 2)`
`y + 1 = 3x - 6`
`y = 3x - 7`