Question

Find the equation of the line passing through points (15,-25) and (12,-11). Write your answer in the form y=mc+b

Answer 1

Hello : let A(15,-25) B(12,-11)
the slope is : (YB - YA)/(XB -XA)
(-11+25)/(12-15) = -14/3
an equation is : y=ax+b a is a slope

y = (-14/3)x +b

the line through point (12,-11) : -11 = (-14/3)(12)+b
-11 = -56 +b

b = 45
the equation is : y =(-14/3)x+45