Variation Study Guide Check

y=2x

• direct

• inverse

• joint

• direct

• inverse

• joint

xy=12

• direct

• inverse

• joint

• direct

• inverse

• joint

Table with points:

(3,12), (6,6), (9, 4), (12, 3)

• direct

• inverse

• joint

Table with points:

(4, 6), (8, 12), (12, 18), 18, 27)

• direct

• inverse

• joint

b varies directly with t

y is inversely proportional to r

r varies jointly as t and u

m varies directly as n and inversely to p