2.5.1 Task 4

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Merryn Horrocks

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Ready to use

11 months, 2 weeks ago

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Merryn Horrocks 11 months, 2 weeks ago

Published this.

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Merryn Horrocks 11 months, 2 weeks ago

Gave some feedback: Ready to use

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Merryn Horrocks 11 months, 2 weeks ago

Created this as a copy of 2.5.1 Task 1.

Name	Status	Author	Last Modified
2.5.1 Task 1	Ready to use	Merryn Horrocks	26/04/2024 05:50
2.5.1 Task 2	Ready to use	Merryn Horrocks	26/04/2024 05:52
2.5.1 Task 3	Ready to use	Merryn Horrocks	26/04/2024 05:54
2.5.1 Task 4	Ready to use	Merryn Horrocks	26/04/2024 05:54

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Question statement

Which of the following lines has the steepest gradient?

Give any introductory information the student needs.

			Name	Type	Generated Value

diagram1	jsxgraphboard	HTML node
diagram2	jsxgraphboard	HTML node
c	list	[ 2, 1, 1/7, 1/4, 8, 2, -4 ]
diagram3	jsxgraphboard	HTML node
d	list	[ 2, 3, 1/4, 1, 4, 5, 3 ]

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
jessiecode(
  250,250,[-0.5,29, 6,-2],
  """
    A= point(0,3) <<label:<<visible: false >> >>;
    B=point(5,23) <<label:<<visible: false >> >>;
  
    side_a = line(A,B);
    
    x=text(5.7,-1,"x"); // no idea how to get axis labels otherwise...
    y=text(-0.3,28,"y");
  
  """,
  [
    "axis": true
  ]
)

JME function reference

This variable is an interactive HTML node. Interactive HTML nodes can not be relied upon to work correctly when resuming a session - for example, attached event callbacks will be lost, and mathematical notation will likely also break.

If this causes problems, try to create HTML nodes where you use them in content areas, instead of storing them in variables.

Description

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

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Generated value: `jsxgraphboard`

0,0

This variable doesn't seem to be used anywhere.

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$\displaystyle{y=\frac{17x+4}{5} }$

Marks: Distractor Message:
$\displaystyle{y=9x-2 }$

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$\displaystyle{y=\frac{1}{3}x+4 }$

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Advice

When the line is written in the form $y=ax+b$, the constant $a$ is the gradient. Work out the gradient for each line and then determine which has the greatest magnitude (absolute value).

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Merryn Horrocks 11 months, 2 weeks ago

Merryn Horrocks 11 months, 2 weeks ago

Merryn Horrocks 11 months, 2 weeks ago

Error in variable testing condition

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Generated value: `jsxgraphboard`

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2.5.1 Task 4

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Merryn Horrocks 11 months, 2 weeks ago

Merryn Horrocks 11 months, 2 weeks ago

Merryn Horrocks 11 months, 2 weeks ago

Error in variable testing condition

Error

Warning

Generated value: jsxgraphboard

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Advanced settings

Generated value: `jsxgraphboard`