SOLUTION: given points A(-1,-4), B(1,x), and C(3,-1). determine x so that A, B, and C are collinear

Algebra ->  Length-and-distance -> SOLUTION: given points A(-1,-4), B(1,x), and C(3,-1). determine x so that A, B, and C are collinear      Log On


   

Question 1000832: given points A(-1,-4), B(1,x), and C(3,-1). determine x so that A, B, and C are collinear
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Find slope for line AC;

Setup equation for slope of either line AB or CB;

Solve the equation.

Still need help? The key is to know the formula for slope.