2.5.3 Task 1

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11 months, 1 week ago

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Merryn Horrocks 11 months, 1 week ago

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Merryn Horrocks 11 months, 1 week ago

Gave some feedback: Ready to use

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Merryn Horrocks 11 months, 2 weeks ago

Created this as a copy of 2.5.3 The equation of a straight line through two points.

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Question statement

Find the equation of the line passing through $A(\var{x1}, \var{y1})$ and $B(\var{x2}, \var{y2})$ .

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			Name	Type	Generated Value

vars	list	List of 24 items
x1	integer	-8
x2	integer	-10
y1	integer	7
y2	integer	-13
m	rational	10
b	rational	87

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
shuffle(-12..12 except 0)

JME function reference

Description

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Generated value: `list`

[ -8, -4, -10, 7, 10, 11, -7, -11, 5, 3, 6, -1, 1, -3, 4, -6, 9, 8, -5, -9, 12, -12, 2, -2 ]

This variable doesn't seem to be used anywhere.

Advice

$\begin{align}\dfrac{y-\var{y1}}{\var{y2}-\var{y1}}&=\dfrac{x-\var{x1}}{\var{x2}-\var{x1}}\\ \dfrac{\var{simplify(expression("y-"+y1),"all")}}{\var{y2-y1}}&=\dfrac{\var{simplify(expression("x-"+x1),"all")}}{\var{x2-x1}}\\ \var{simplify(expression("y-"+y1),"all")} &= \dfrac{\var{y2-y1}}{\var{x2-x1}}(\var{simplify(expression("x-"+x1),"all")})\\&= \var[fractionNumbers]{simplify(expression( string(simplify(expression("("+y2+"-"+y1+")/("+x2+"-"+x1+")*x" ),"all"))+"+"+string(-x1*(y2-y1)/(x2-x1))),"basic")}\\ y&= \var[fractionNumbers]{simplify(expression( string(simplify(expression("("+y2+"-"+y1+")/("+x2+"-"+x1+")*x" ),"all"))+"+"+string(-x1*(y2-y1)/(x2-x1)+y1 )),"basic")} \end{align}$

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Taxonomy: mathcentre

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Merryn Horrocks 11 months, 1 week ago

Merryn Horrocks 11 months, 1 week ago

Merryn Horrocks 11 months, 2 weeks ago

Error in variable testing condition

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Generated value: `list`

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Mathematical expression

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2.5.3 Task 1

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Merryn Horrocks 11 months, 1 week ago

Merryn Horrocks 11 months, 1 week ago

Merryn Horrocks 11 months, 2 weeks ago

Error in variable testing condition

Error

Warning

Generated value: list

Parts

Mathematical expression

Advanced settings

Checking accuracy

Variable value generators

Pattern restriction

Variables

String restrictions

Generated value: `list`