Solving Simultaneous Equations (Grade 10 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
How many independent equations are needed to solve for two unknown variables?
How many independent equations are needed to solve for two unknown variables?
Two equations
When is the substitution method particularly useful?
When is the substitution method particularly useful?
When equation easily rearranged for 1 var
In substitution method, what do you do after expressing one variable in terms of the other?
In substitution method, what do you do after expressing one variable in terms of the other?
Replace this variable in 2nd equation
What does the elimination method involve?
What does the elimination method involve?
Making coefficients equal then add/subtract
In elimination, when should you subtract the equations?
In elimination, when should you subtract the equations?
When coefficients have same sign
What is the first step in the graphical method?
What is the first step in the graphical method?
Rearrange into form
What does the intersection point represent in the graphical method?
What does the intersection point represent in the graphical method?
The solution coordinates
What does it mean if two lines are parallel when solving graphically?
What does it mean if two lines are parallel when solving graphically?
No solution exists
Why should you check your solution by substituting into both original equations?
Why should you check your solution by substituting into both original equations?
To ensure it satisfies both equations
When is elimination often faster than substitution?
When is elimination often faster than substitution?
When coefficients are similar or easily made equal