Pair of Linear Equations in Two Variables

In this chapter, you will be introduced to the linear equations in two variables and different graphical and algebraic methods of finding the solutions of a given pair of equations.

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Created by School Prep . Last updated Thu, 25-Mar-2021 English
Curriculum for this course
43 Lessons 20:23:28 Hours
Modelling real-world scenarios with linear equations
3 Lessons
  • Linear functions word problem: fuel 00:05:30
  • Linear functions word problem: pool 00:03:12
  • Quiz 1 00:00:00
  • Linear models word problem: book 00:08:52
  • Linear models word problem: marbles 00:05:37
  • Quiz 2 00:00:00
  • Systems of equations with elimination: King's cupcakes 00:09:00
  • Systems of equations with elimination: x-4y=-18 & -x+3y=11 00:05:59
  • Systems of equations with elimination: potato chips 00:09:21
  • Systems of equations with elimination (and manipulation) 00:12:01
  • Why can we subtract one equation from the other in a system of equations? 00:08:13
  • Worked example: equivalent systems of equations 00:05:31
  • Quiz 3 00:00:00
  • Systems of equations with substitution: potato chips 00:05:21
  • Systems of equations with substitution: -3x-4y=-2 & y=2x-5 00:04:21
  • Quiz 4 00:00:00
  • Cross multiplication method 00:11:25
  • Quiz 5 3
  • Systems of equations number of solutions: fruit prices (1 of 2) 00:09:25
  • Systems of equations number of solutions: fruit prices (2 of 2) 00:07:08
  • Solutions to systems of equations: consistent vs. inconsistent 00:05:29
  • Solutions to systems of equations: dependent vs. independent 00:05:10
  • Number of solutions to a system of equations 00:03:26
  • How many solutions does a system of linear equations have if there are at least two? 00:02:12
  • Quiz 6 5
  • Number of solutions to a system of equations algebraically 00:06:01
  • Forming systems of equations with different numbers of solutions 00:06:21
  • Quiz 7 5
  • Age word problem: Imran 00:03:43
  • Age word problem: Ben & William 00:06:28
  • Age word problem: Arman & Diya 00:05:21
  • System of equations word problem: walk & ride 00:07:00
  • System of equations word problem: no solution 00:05:03
  • System of equations word problem: infinite solutions 00:05:01
  • Systems of equations with elimination: TV & DVD 00:05:51
  • Systems of equations with elimination: apples and oranges 00:05:06
  • Systems of equations with substitution: coins 00:05:59
  • Systems of equations with elimination: coffee and croissants 00:04:15
  • Quiz 8 4
  • Solving equations reducible to linear form 00:10:06
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