Question

How do you write an equation of a line given (1,7) with a slope of 7?

Answer 1

`y=7x`

Explanation:

The equation of a line passing through `(x_1,y_1)` and having a slope of `m` is

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

Hence equation of desired line is

`(y-7)=7(x-1)` or

`y-7=7x-7` or

`y=7x`