what is the slope for (4,-4) (8,-1) (0,-7) (-4,-10)

Question

find the slope of the using: (4,-4) (8,-1) (0,-7) (-4,-10) I took notes but I still don't understand please HELPPP!!!!!!!!!!!!

 

Answer 1

Let A = (4,-4)   B = (8,-1)    C = (0,-7)   D = (-4,-10)

 

Slope AB = [-1-(-4)]/(8-4) = 3/4

 

Equation of line containing A and B is: y - (-1) = (3/4)(x - 8)

 

            Simplifying, we have y = (3/4)x - 7

 

Points C and D also satisfy this equation, so all four points lie on the same line.  

 

Pick any two of the four points.  The slope will be 3/4.   

Answer 2

To find a slope you need two sets of coordinates but you have four.  Review the question and I'll be happy to help.