What is the constant of variation, k, of the direct variation, y = kx, through (5, 8)? k = -8/5 k= - 5/8 k= 5/8 k= 8/5

ANSWER

The constant of  direct variation is

EXPLANATION

Since the equation goes through the point , it must satidfy its equation.

We therefore, substitute the point , in to the equation and solve for .

This implies that;

Therefore the constant of  direct variation is

Hence the correct answer is D.

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!