Question

How do you write an equation of a line given (1,4) and (-2,-5)?

Answer 1

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

Explanation:

Slope `m=(y_2-y_1)/(x_2-x_1)=(4--5)/(1--2)=9/3=3`

Using Point-Slope form

`y-y_1=m(x-x_1)`
`y-4=3(x-1)`

God bless....I hope the explanation is useful.