Simultaneous Equations (Grade 12 NSC Matric Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are simultaneous equations?
What are simultaneous equations?
Sets of equations solved together
What are the two main types of simultaneous equations?
What are the two main types of simultaneous equations?
Linear-linear and linear-quadratic
What do solutions of simultaneous equations represent geometrically?
What do solutions of simultaneous equations represent geometrically?
Points where graphs intersect
Which method should be used for linear-quadratic simultaneous equations?
Which method should be used for linear-quadratic simultaneous equations?
Substitution method
Why use the linear equation for substitution in Step 1?
Why use the linear equation for substitution in Step 1?
Easier to express variable than quadratic
How many solution points do linear-quadratic systems typically give?
How many solution points do linear-quadratic systems typically give?
Two solution points
Why find intersections algebraically rather than from a graph?
Why find intersections algebraically rather than from a graph?
Algebraic solutions are more accurate
Which methods can solve linear-linear simultaneous equations?
Which methods can solve linear-linear simultaneous equations?
Substitution or elimination
When is substitution quicker than elimination for linear-linear systems?
When is substitution quicker than elimination for linear-linear systems?
When a variable has coefficient 1
What is usually required when solving the resulting quadratic equation?
What is usually required when solving the resulting quadratic equation?
Factorisation