Question

Find an equation for the line that passes through the points (5,-5) and (-1,3)

Answer 1

The formule of line is y=ax+b;

`-5=5a+b\\ 3=-a+b\\`
So a=-4/3 and b=5/3.
Hence the equation of line is
`y= (-4)/(3)x+ (5)/(3).`