Wednesday, April 8, 2009
Monday, April 6, 2009
Simultaneous Equation
Chapter 4 – Simultaneous Equations
In this chapter, students will be taught to solve simultaneous equations using the substitution method and solve simultaneous equation involving real-life situations.
1. Solve simultaneous equations in two unknown: one linear equation and one non-linear equation.
1.1 Solve simultaneous equations using the substitution method
The following simultaneous equation consists of a linear equation and a non-linear equation (up to second degree only).
Solving the equations means finding 2 sets of solutions that satisfy both the equation given, a linear equation and a non-linear equation. A general method of solution is to make one of the unknowns the subject of the linear equation, then substitute this value in the non-linear equation.From (i) we obtain y = 2x – 3 (iii)
Substitute y= 2x - 3 into (ii)
In this chapter, students will be taught to solve simultaneous equations using the substitution method and solve simultaneous equation involving real-life situations.
1. Solve simultaneous equations in two unknown: one linear equation and one non-linear equation.
1.1 Solve simultaneous equations using the substitution method
The following simultaneous equation consists of a linear equation and a non-linear equation (up to second degree only).
Solving the equations means finding 2 sets of solutions that satisfy both the equation given, a linear equation and a non-linear equation. A general method of solution is to make one of the unknowns the subject of the linear equation, then substitute this value in the non-linear equation.From (i) we obtain y = 2x – 3 (iii)
Substitute y= 2x - 3 into (ii)
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