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.1) Lesson Objectives:
.1) Lesson Objectives:
You should be able to
solve simultaneous equations using graphical method
know when a pair of simultaneous equations will give the following solutions:
One solution
Infinitely many solutions
No solutions
Always look through all examples in textbook before lesson.
Do remember to download the DESMOS GRAPHING CALCULATOR APP or You can use website as well by typing DESMOS and Selecting Graphing Calculator.
Solving Simultaneous Equations using graphical method
Solving Simultaneous Equations using graphical method
Drawing graphs to solve simultaneous equations
Drawing graphs to solve simultaneous equations
Drawing graph by choosing own value of x
Drawing graph by choosing own value of x
Two line intersecting
Two line intersecting
One value of x and y
Parallel lines
Parallel lines
No Solutions: No values of x and y
Coincident lines
Coincident lines
Infinite number of solutions
2) Homework:
2) Homework:
TB Ex 1B Qtn 1f , 2a and 5.
For both questions:
Use a scale of 2 cm to 1 unit on the horizontal axis and 2 cm to 1 unit on the vertical axis.
Range of x: 0 to 6
Range of y: -7 to 4
Use the following details to draw the table to find the coordinates for each graph.
Qtn 1f:
Use the following x values to find y.
3x - 4y = 25 use x=0, x=2 and x=4.
4x - y = 16 use x =3, x=4 and x=5.
Qtn 2a:
Use the following x values to find y.
x + 4y - 12 = 0 use x=0, x=2 and x=4.
4x + y - 18 = 0 use x =3.5, x=5 and x=6.
*Qtn 5: Go thorough the video and explain the question in words. DO NOT NEED TO DRAW THE GRAPH. Write your answer at the back of Qtn 2a graph.
Due Date:
2-5: 12 Jan (Tue)
2-7: 11 Jan (Mon)
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