Aline that contains the point (0,-4) and (2,1)?

First find the slope with the difference in y over the difference in x between the points. That'll make the slope 5/2. Then find the y-intercept (b) with the point slope formula. B=-4. The equation of the line is

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2