Directly and Indirectly Proportional

What type of proportion does the table represent?

• Direct

• Inverse

• I dont' know

g is directly proportional to b

Given g=20 when b=4.

Find g when b=7

• 35

• 5

• 15

• 23

t is directly proportional to n².

Given t=144 when n=6.

Find the equation for t and n.

• t = 4n²

• t = 4n

• t = 24n

• t = 6n²

t is inversely proportional to v

t=2 when v=6

Find the equation for t and v

• t = ¹²/_v

• t = ¹/₃ v

• t = ³/_v

• t = 12v

If z is inversely proportional to ∛w and z=5 when w=8,

find the value of w when z=100.

• 1

• 0.1

• 0.01

• 0.001

At Sec 2 camp, there is sufficient food for 48 students to last 6 days. If 12 students are absent from the camp, how many more days can the food last?

• 2

• 4

• 6

• 8

48 men were deployed to construct a bridge in 30 days.

How many days does it take for 8 men to construct the same bridge?

• 5

• 10

• 180

• 200

48 men were deployed to construct a bridge in 30 days.

How many days does it take for 16 men to construct 2 identical bridges?

• 150

• 160

• 180

• 190

Which equation shows a direct proportion?

• y = 5x - 2

• y = 3/4 x

• y - x = 4

• x = 6

Which of the following graph shows a direct proportion relationship?

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