According to the graph, what is the value of the constant in the equation below? (4,12.5)(5,10)(10,5)(20,2.5)plz a.15 b.5 c.2 d.50

likewise here, we do the same, pick any of the points, say (10, 5).

If we assume your equation is ...

... y = k/x . . . . . . the equation of inverse variation

the value of k is found from any ordered pair of values.

... x·y = k . . . . . . multiply the above equation by x

... 4×12.5 = 5×10 = 10×5 = 20×2.5 = k = 50

The constant in the above equation is 50.

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it