SOLUTION: "The gradient of the line joining (4, q) to (6, 5) is twice the gradient of the line joining (0, 0) to (4, q). Find q." Why is the equation for this answer (q-5)/(4-6) = 2(q/4)

Algebra ->  Coordinate-system -> SOLUTION: "The gradient of the line joining (4, q) to (6, 5) is twice the gradient of the line joining (0, 0) to (4, q). Find q." Why is the equation for this answer (q-5)/(4-6) = 2(q/4)       Log On


   

Question 1166858: "The gradient of the line joining (4, q) to (6, 5) is twice the gradient of the line joining (0, 0) to (4, q). Find q."
Why is the equation for this answer (q-5)/(4-6) = 2(q/4) and not (5-q)/(6-4) = 2(q/4) ? I don't understand.
Answer by ikleyn(52793) About Me  (Show Source):
You can put this solution on YOUR website!
.

For your info 

    (q-5)/(4-6)    =    (5-q)/(6-4).


Therefore, the two writings are EQUIVALENT.