The document presents 10 math exercises involving functions, ordered pairs, graphing points in the coordinate plane, and evaluating functions. Students are asked multiple choice questions related to identifying functions, finding coordinates of points, evaluating functions for given values, and performing operations on functions. An interaction and integration activity is suggested to discuss solutions and relationships between domain, range, and the defining characteristics of a function.

1. Math Activities: Reference: http:/www.newintegratedmath.com
Exercise: Answer the following.
1. Which of the following sets of ordered pairs is a function?
a. {(0, 1), (0, -1), (1, 2), (1, -2), (2, 3), (2, -3)}
b. {(2, 4), (-2, 4), (1, 1), (-1, 1), (3, 9), (-3, 9)}
c. {(4, 2), (4, -2), (1, 1), (-1, 1), (9, 3), (-9, 3)}
d. {(1, 1), (1, -1), (1, 2), (1, -2), (1, 3), (1, -3)}
2. Where is the point (-4, 5) located?
a. Quadrant I b. Quadrant II c. Quadrant IIId. Quadrant IV
3. What are the coordinates of the point located 3 units to the left of the y-axis and 4 units above the x-axis?
a. (-3, 4) b. (4, -3) c. (3, -4) d. (-4, 3)
4. Which of the following equation(s) is/are function(s)?
i. y =3x+ 2 ii. x2 + y2 = 36 iii. y = 3x + 5
a. i only b. i and ii c. i and iii d. ii and iii
5. What are the coordinates of the point located 2 units to the left of the y-axis and
5 units below the x-axis?
a. (-2, 5) b. (5, -2) c, (2, -5) d. (-2, -5)
6. Which of the following equation(s) is/are function(s)?
i. x2 – y2 = 49 ii. y = - 9 − x2 iii. 4x + 9y = 27
a. i only b. .i and ii c. ii and iii d. i and iii
7. What is the domain of the set of ordered pairs {(-2, -8), (-1, -1), (0, 0), (1, 1), (2, 8)}?
a. {-2, -1, 0, 1, 2}
b. {-8, -1, 0, 1, 8}
c. {0, 1, 2}
d. Real numbers
8. If f(x) = 3x2 + 4x – 5, what is f(-5)?
a. -100 b. -50 c. 90 d. 50
9. Given f(x) = x2 + 3x – 28.
Find: a. f(5) b. f(-4) c. f(a)
a. f(5) = 52 + 3(5) – 28 = 25 + 15 – 28 = 12
b. f(-4) = (-4)2 + 3(-4) – 28 = 16 -12 -28 = -24
c. f(a) = a2 + 3(a) – 28 = a2 + 3a – 28
10. Given f(x) = 3x + 2 and g(x) = x2.
Find: a. f(x) + g(x) b. g(x) – f(x) c. f(x) • g(x)

2. Encounter activity:
Interaction
• Choose a few numbers to discuss to the class. Encourage students to explain the solution.
Integration
• Domain and range are parts of the relation. Ask them to mention their existing relationship and
let them identify the parts of that relationship. How do these parts give the identity of such
relationship?