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Use two points on a line graph to calculate the gradient and y-intercept and hence the equation of the straight line running through both points.
The answer box for the third part plots the function which allows the student to check their answer against the graph before submitting.
This particular example has a positive gradient.
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England schools
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England university
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Scotland schools
Taxonomy: mathcentre
Taxonomy: Kind of activity
Taxonomy: Context
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History
Ida Landgärds 7 years ago
Created this as a copy of Ida's copy of Find the equation of a line through two points - positive gradient.There are 102 other versions that do you not have access to.
| Name | Type | Generated Value |
|---|
| xa | integer |
-2
|
||||
| xb | integer |
2
|
||||
| ya | integer |
2
|
||||
| yb | integer |
6
|
||||
| m | rational |
1
|
||||
| c | rational |
4
|
Generated value: integer
- c
- m
- xb
This variable doesn't seem to be used anywhere.
Gap-fill
Ask the student a question, and give any hints about how they should answer this part.
Stigningstallet $a$ til en linje gjennom to punkter $(x_{1},y_{1})$ og $(x_{2},y_{2})$ er gitt ved
$ a=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$. Finn stigningstallet til linja ved bruk av punktene som er gitt i grafen.
$a=$
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This question is used in the following exam: