Number of solutions
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Lesson details
Key learning points
- In this lesson, we will look at the number of possible solutions for quadratic equations and investigate patterns linking the form of an equation and the number of real solutions it has.
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5 Questions
Q1.
Which is of the following is true about quadratic equations:
It has one solution
It has two solutions
Q2.
Choose the most appropriate pair of solutions for A
18
40.5
9
Q3.
Choose the most appropriate pair of solutions for B
24.5 and -24.5
sqrt(51) and - sqrt(51)
sqrt(53) and - sqrt(53)
Q4.
Choose the most appropriate pair of solutions for C
3 and -3
3 and 7
sqrt(23) and - sqrt(23)
sqrt(27) and - sqrt(27)
Q5.
Choose the most appropriate pair of solutions for D
3 and -3
sqrt(39)/3 and - sqrt(39)/3
5 Questions
Q1.
How many real solutions does 'A' have?
One
Zero
Q2.
How many real solutions does 'B' have?
One
Two
Q3.
How many real solutions does 'C' have?
One
Two
Q4.
How many real solutions does 'D' have?
Two
Zero
Q5.
How many real solutions does 'E' have?
One
Zero