Onlinetuition.com Mathematics – Form 1, 2 & 3
Question 4: Table below shows the scores for a group of pupils in a sport game. Score 1 2 3 4 5 Number of pupils 4 11 5 3 2 Calculate the percentage number of pupils who obtain scores more than the mode score. Solution: Mode score = 2 Number of pupils who obtain … Read more
12.2.1 Measures of Central Tendencies, PT3 Focus Practice Question 1: Given that the mode of the set of data 7, 5, 3, 2, 3, y, 7, 6 and 5 is 7, find the mean. Solution: If the mode is 7, then y = 7 ∴ Mean = 7 + 5 + 3 + 2 … Read more
12.1 Measures of Central Tendencies 12.1.1 Pie Charts 1. A pie chart is a graphic representation of data using sectors of a circle. The size of each sector shows the percentage of each category of data it represents. Example: 2. The percentage of data represented by each sector can … Read more
11.2.1 Isometric Transformations, PT3 Focus Practice Question 1: Diagram below in the answer space shows object P drawn on a grid of equal squares with sides of 1 unit. On the diagram, draw the image of object P under the translation ( − 6 3 ) . Answer: Solution: Question 2: Describe the translation which maps … Read more
11.1 Isometric Transformations 11.1.1 Transformation A transformation is a one-to-one correspondence or mapping between points of an object and its image on a plane. 11.1.2 Translation 1. A translation is a transformation which moves all the points on a plane through the same distance in the same direction. 2. Under a translation, the shape, size and orientation … Read more
8.2.2 Graphs of Functions, PT3 Focus Practice Question 4: Use graph paper to answer this question. Table below shows the values of two variables, x and y, of a function. x –3 –2 –1 0 1 2 3 y –19 –3 1 –1 –3 1 17 The x-axis and the y-axis are provided on the … Read more
8.2.1 Graphs of Functions, PT3 Focus Practice Question 1: In the figure shown, when x = 4, the value of y is Solution: T is the point on the graph where x = 4. Hence, when x = 4, y = 5. Question 2: Diagram shows the graph of a function on a Cartesian plane. … Read more
8.1 Graphs of Functions 8.1.1 Functions 1. Function is a relationship that expresses a variable (dependent) in terms of another variable (independent). 2. y is a function of x if and only if every value of x corresponds to only one value of y. 8.1.2 Graphs of Functions 1. A graph … Read more
5.2.1 Coordinates, PT3 Focus Practice Question 1: In diagram below, Q is the midpoint of the straight line PR. The value of m is Solution: 2 + m 2 = 5 2 + m = 10 m = 8 Question 2: In diagram below, P and Q are points on a Cartesian plane. If … Read more
7.1 Coordinates 7.1.1 Coordinates 1. The Cartesian coordinate system is a number plane with a horizontal line (x-axis) drawn at right angles to a vertical line (y-axis), intersecting at a point called origin. 2. It is used to locate the position of a point in reference to the x-axis and y-axis. 3. The coordinate of any point are … Read more