2.6.6 Circle inequality

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Question statement

Describe this region in words:

$\var{eqn1}\;$ and $\;\var{eqn2}$

Give any introductory information the student needs.

			Name	Type	Generated Value

radius1	integer	3
radius2	integer	6
idx	integer	1
eqn1	expression	x^2 + y^2>9
eqn2	expression	x^2 + y^2<36

			Name	Type	Generated Value

			Name	Type	Generated Value

			centrex		Definition of variable `centrex` is empty.
			centrey		Definition of variable `centrey` is empty.
			incolor		Definition of variable `incolor` is empty.
			outcolor		Definition of variable `outcolor` is empty.
			radius		Definition of variable `radius` is empty.
			xmax		Definition of variable `xmax` is empty.
			xmin		Definition of variable `xmin` is empty.
			ymax		Definition of variable `ymax` is empty.
			ymin		Definition of variable `ymin` is empty.

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(1..4)

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

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Generated value: `integer`

→ Used by:

eqn1

Advice

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Advice

This is the region outside the circle centred at the origin with radius $\var{radius1}$ .

This is the region inside the circle centred at the origin with radius $\var{radius2}$ . This region is referred to as a disc.

This is the annular ring between the circles centred at the origin with radii $\var{radius1}$ and $\var{radius2}$ .

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This question is used in the following exams:

HELM Book 2.6 The Circle by Merryn Horrocks in HELM books.
HELM Book 2.6.2 Exercises by Merryn Horrocks in HELM books.

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Merryn Horrocks 10 months, 4 weeks ago

Merryn Horrocks 2 years, 4 months ago

Merryn Horrocks 2 years, 4 months ago

Error in variable testing condition

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Generated value: `integer`

Parts

Information only

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2.6.6 Circle inequality

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Merryn Horrocks 10 months, 4 weeks ago

Merryn Horrocks 2 years, 4 months ago

Merryn Horrocks 2 years, 4 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Information only

Generated value: `integer`