1. Mathematics (數學) for Physics
Equation (方程式) and Graph (圖表)
Equation of a straight line (直線)
Sine (正弦) Function

2. Class Exercise 2.1
Plot the graph of y = 3x from x = 0 to x = 4. x 1 2 3 4 y
What is the value of y when x = 0?
If x increases by 1 unit, what is the change in y?

3. Class Exercise 2.1
Plot the graph of y = 3x from x = 0 to x = 4. x 1 2 3 4 y 6 9 12
What is the value of y when x = 0?
If x increases by 1 unit, what is the change in y?

5. What is the value of y when x = 0?
(b) If x increases by 1 unit, what is the change in y?
+3 units

6. Class Exercise 2.2
Plot the graph of y = 6 - 2x from x = -3 to x = 3. x -3 -1 1 3 y
What is the value of y when x = 0?
If x increases by 1 unit, what is the change in y?

7. Class Exercise 2.2
Plot the graph of y = 6 - 2x from x = -3 to x = 3. x -3 -1 1 3 y 12 8 4
What is the value of y when x = 0?
If x increases by 1 unit, what is the change in y?

9. What is the value of y when x = 0?6
(b) If x increases by 1 unit, what is the change in y?
-2 units

12. 2 5 5

14. x + 2y = 6
2y = 6 – x
y = -0.5x + 3

15. x + 2y = 6
2y = 6 – x
y = -0.5x + 3
-0.5 3

17. 3

20. 0.5
0.707
0.866 1

22. 11.5˚
30˚
53.1˚
90˚

23. 1. Chapter 1: Introduction Q.1 – Q.4 (p.1) Chapter 2: Math
Homework:
Assignment Book
1. Chapter 1: Introduction
Q.1 – Q.4 (p.1)
Chapter 2: Math
Q.1 – Q.4 (p.2-3)
2. Deadline: 23