Question

If z varies directly with the product of x and y (z=kxy), then z is said to vary jointly with x and yThe area of a triangle varies jointly with its base and height. What is the constant variation?

Answer 1

The area of a triangle is  (1/2) * (base) * (height) .

It varies jointly with the length of the base and the height.

The constant of variation is the (1/2) .