Question

How do you write an equation of a line given points (-2,-3) and (4,5)?

Answer 1

`y = 4/3 x - 1/3`

Explanation:

`y = ax + b`

`Delta y = 5 + 3 = 8 and Delta x = 4 + 2 = 6`

`a = 8/6 = 4/3`

`y(4) = 5 => 4/3*4 + b = 5 => b = 5 - 16/3`