Question

A line passes through (4,5) and (8,9)

Answer 1

Explanation:

Hey there!

The equation of a st.line passing through points (4,5) and (8,9) is;

`(y - y1) = (y2 - y1)/(x2 - x1) (x - x1)`

Put all values.

`(y - 5) = (9 - 5)/(8 - 4) (x - 4)`

Simplify them to get equation.

`(y - 5) = (4)/(4) (x - 4)`

`(y - 5) = 1(x - 4)`

`(y - 5) = x - 4`

`x - y + 1 = 0`

Therefore the required equation is: x - y + 1=0.

Hope it helps...