Question

How do you find the slope given (-1,2) (1,-2)?

Answer 1

slope = - 2

Explanation:

To calculate the slope use the `color(blue)"gradient formula"`

`color(red)(|bar(ul(color(white)(a/a)color(black)(m=(y_2-y_1)/(x_2-x_1))color(white)(a/a)|)))`
where m represents the slope and `(x_1,y_1), (x_2,y_2)" 2 points"`

here the 2 points are (-1 ,2) and (1 ,-2)

let `(x_1,y_1)=(-1,2)" and " (x_2,y_2)=(1,-2)`

substitute these values into the gradient formula.

`rArrm=(-2-2)/(1-(-1))=(-4)/2=-2" is the slope"`