M3/2 Supplemental Reviewer

f 𝑓(𝑥) = 3𝑥 + 5, find 𝑓(4).

• 10

• 21

• 8

• 17

If 𝑓(𝑛) = −6𝑛 + 2, find 𝑓 ( 1/6 ).

• 4

• 1

• 2

• 8

If 𝑓(𝑛) = 𝑛 + 5 , find 𝑓 ( 3/4 ).

• 13/4

• 23/4

• 19/4

• 8/4

Complete the table to find the function values of {-1, 7} for f(n) = 5n -3

Input Rule: 5n - 3 Output

-2

4

• f(-2) = 6; f(7) = 12

• f(-2) = -13; f(7) = 32

• f(-2) = -9; f(7) = 45

• f(-2) = -14; f(7) = 43

Complete the function table to find the values of {-1, 0, 1, 2} for f(x) = 3n + 1.

• f(-1) = 2; f(0) = 1, f(1) = 5; f(2) = 7

• f(-1) = 2; f(0) = 2, f(1) = 4; f(2) = 7

• f(-1) = 2; f(0) = 1, f(1) = 4; f(2) = 7

• f(-1) = 2; f(0) = 1, f(1) = 4; f(2) = 6

For each 20 people that attend the birthday party, there is 4 more persons to put the catering staff.

• 4c = p/20

• 20c = p/4

• 4p = 20c

• 4c = 40/p

In a marathon fundraising, 200 baht is donated for every mile run. Write the function to represent the situation.

• d = 200 + mi

• d = 200mi

• d = 200/mi

• d = mi - 200

The museum charges per person. If x people enter the museum, then the total cost is y baht. Complete the data to determine how much is charge for 3 persons.

x 0 1 2 3

y 0 7 14 ?

• 20

• 21

• 27

• 28

The cost c of buying a badminton racket and s shuttlecock is shown in the table. Fill the missing data that determines the cost of a racket and 12 set of shuttlecock.

c 6 8 10 12

r 66 75 84 ?

• 95

• 96

• 93

• 94

Jacob can run 50 miles per hour. The graph shows how fast Kevin is. Compare the functions. Which statement is true?

• Kevin runs faster than Jacob.

• Jacob runs faster than Kevin.

• They are running at the same speed.

• They are running in an inconsistent speed.