What I Know

Directions: Choose the letter of the correct answer. Write your answer on a separate sheet of paper.

1. This is a rule of correspondence between two nonempty sets, such that each element of the first set called domain, there corresponds one and only one element of the second set called range.

a. Relation

b. Function

c. Differentiation

d. Integration

2. A graph of a mathematical relation is a function if any through the graph intersects the graph at exactly one point. drawn passing

a. Horizontal Line

b. Vertical Line

c. Diagonal Line

d. Both A and B

3. Which of the following sets of ordered pairs are functions?

a. A = \{(1, 2), (2, 3), (3, 4), (4, 5)\}

b. A = \{(1, 1), (2, 2), (3, 3), (4, 4)\}

c. A = \{(1, 0), (0, 1), (- 1, 0), (0, - 1)\}

d. A=\ (- 2, 4), (- 1, 1), (0, 0), (1, 1) ,(2,4\

4. Express the situation as a rule: length of its side s." "The area A of a square is a function of the

a. A = 4s

b. A = s ^ 2

c. A = s ^ 3

d. A = 4s ^ 2

5. If g(m) = 3m - 4 and h(m) = 6m then what is (g h) (m)

a. 18m - 4

b. 18m - 14

c. 18m - 24

d. 18m - 34

6. Given that f(x) = sqrt(x + 3) and g(x) = sqrt(x) - 1 find (fog) (2).

a. 1

b. 2

c. 3

d. 4

7. A proposed fare for a public train would charge P20.00 for the first 8 km of travel and P3.00 for each additional kilometer over the proposed fare. Find the proposed fare for a distance of 50 km.

a. P116.00

b. f ^ 126

c. P136.00

d. P146.00