Find the point-slope equation for the line that passes through the
points (-10, -20) and (1, -9). Use
the first point in your equation.
y-[?] = [ ](x-[ ])

The equation is y = x - 10.

Step-by-step explanation:

Firstly, you have to find the gradient using the formula :

Let (x1,y1) = (-10,-20)

Let (x2,y2) = (1,-9)

Next substitute first coordinate into y - y1 = m(x - x1) :

Let y1 = -20,

Let x1 = -10,

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: