Suppose that x and y vary inversely when x = 1 and y = 7. Write a function that models the inverse variation. Graph the function and find y when x = 20.

Question

Write a function that models the inverse variation.
(Simplify your answer.)
y =

Answer 1

7/x

Graph the function:
y = 7/x

Find y when x = 20:
y = 7/20 = 0.35