Year 11
Foundation

Solving Quadratic Equations Graphically

Year 11
Foundation

Solving Quadratic Equations Graphically

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Lesson details

Key learning points

  1. In this lesson, we will interpret graphs of quadratic equations in order to find their solutions. We will investigate the key features of quadratic graphs that help us identify their solutions.

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4 Questions

Q1.
True or False, here is the graph of 2x²+ 1?
An image in a quiz
Correct answer: False
True
Q2.
Here are four quadratic graphs. The red curve shows y = x². Which equation is the yellow curve labelled i?
An image in a quiz
A
B
Correct answer: C
D
Q3.
Here is a table of values for y = 3x²– 1 Which number is missing?
An image in a quiz
A
B
Correct answer: C
D
Q4.
Which option is true for f(x)= 0.5x² - 1 ?
An image in a quiz
Correct answer: A
B
C
D

4 Questions

Q1.
An image in a quiz
A
B
Correct answer: C
D
Q2.
An image in a quiz
A
B
C
Correct answer: D
Q3.
An image in a quiz
(-0.5, 0)
Correct answer: (-0.5, 0) and (3.5, 0)
(0.5, 0) and (3.5, 0)
(0.5, 3.5)
Q4.
An image in a quiz
A
B
C
Correct answer: D