Question

The slope of the line below is 2. Which of the following is the point-slope form of the line? the x is 1 and the y is -1

Answer 1

The point slope form would be y+1=m(x-1)

Answer 2

`(y+1)=2(x-1)`

Explanation:

We have been given that the slope of a line is 2 and point (1,-1) in on our given line. We are asked to write the equation for our given line in point-slope form.

Since we know that point-slope form of an equation is:
`(y-y_1)=m(x-x_1)`, where

m = Slope of line,

`(x_1,y_1)` = Coordinates of the given point on line.

Upon substituting our given values in point-slope form of equation we will get,

`(y--1)=2(x-1)`

`(y+1)=2(x-1)`

Therefore, the equation
`(y+1)=2(x-1)` represents our given line in point-slope form.