Question

Lm so confused,Someone please solve and explain

Answer 1

The point-slope form:

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

m - slope

The formula of a slope:

`m=(y_2-y_1)/(x_2-x_1)`

We have the points (-10, -20) ans (1, -9). Substitute:

`m=(-9-(-20))/(1-(-10))=(-9+20)/(1+10)=(11)/(11)=1`

For the first point (-10, -20):

`y-(-20)=1(x-(-10))\\\\\boxed{y+20=1(x+10)}`