Question

How do you write an equation of a line given point (1,-3) and m=-4?

Answer 1

Use the point-slope form of the equation of a line:

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

Explanation:

Given: m = -4 and `(x_1,y_1) = (1,-3)`:

`y = -4(x-1)-3`

Distribute the -4:

`y = -4x+4-3`

Combine like terms:

`y = -4x+1 larr` this is the equation of the line.