Year 9

Solving quadratic simultaneous equations graphically

Year 9

Solving quadratic simultaneous equations graphically

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Lesson details

Key learning points

  1. In this lesson, we will solve pairs of simultaneous equations graphically where one is linear and one is quadratic.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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5 Questions

Q1.
How many real solutions does 'A' have?
An image in a quiz
One
Correct answer: Two
Zero
Q2.
How many real solutions does 'B' have?
An image in a quiz
One
Two
Correct answer: Zero
Q3.
How many real solutions does 'C' have?
An image in a quiz
One
Two
Correct answer: Zero
Q4.
How many real solutions does 'D' have?
An image in a quiz
Correct answer: One
Two
Zero
Q5.
How many real solutions does 'E' have?
An image in a quiz
One
Correct answer: Two
Zero

5 Questions

Q1.
Use the graph to find approximate solutions to the simultaneous equations
An image in a quiz
(-2,0) and (1,0)
(-2.8, 6.8) and (0.8 and 2.2)
Correct answer: (-3.3, 7.6) and (1.6, 2.3)
(7.6, -3.3) and (2.3, 1.6)
Q2.
How many solutions are there to the simultaneous equations below.
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0
Correct answer: 1
2
Q3.
Find the value of y when x = 0
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Correct answer: -10
-3
0
Q4.
Find the value of y when x = 4
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18
398
Correct answer: 78
Q5.
Find the value of y when x = -3
An image in a quiz
-49
239
Correct answer: 29
41