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These are the Transum resources related to the statement: "Understand and use the equation of a straight line, including the forms y – y1 = m(x – x1) and ax + by + c = 0; Gradient conditions for two straight lines to be parallel or perpendicular. Be able to use straight line models in a variety of contexts".

Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Equation of a Line Through Points Match the equations of the straight line graphs to the clues about gradients and points.
- Equation of a Straight Line An online exercise about the equation y=mx+c and the features of a straight line graph.
- Gradient of a Line Practise the skill of finding the gradients of straight lines by counting squares and dividing rise by run.
- Graph Match Match the equations with the images of the corresponding graphs. A drag-and-drop activity.
- Graph Patterns Find the equations which will produce the given patterns of graphs.
- Parallel Graphs Collect together in groups the equations of the graphs that are parallel to each other.
- Straight Line Graphs 10 straight line graph challenges for use with computer graph plotting software or a graphical display calculator.

Here are some exam-style questions on this statement:

- "
*The equation of the line L*" ... more_{1}is \(y = 2 - 5x\). - "
*Show that line \(5y = 7x - 7\) is perpendicular to line \(7y = -5x + 55\).*" ... more - "
*A straight line goes through the points \((a, b)\) and \((c, d)\), where*" ... more - "
*Suppose a rhombus ABCD is drawn on a coordinate plane with the point A situated at (4,7). The diagonal BD lies on the line \(y = 2x - 5 \)*" ... more - "
*Consider a straight line graph L1, which intersects the x-axis at A(8, 0) and the y-axis at B (0, 4).*" ... more - "
*The vertices of quadrilateral ABCD are A (2, 4), B (-1, 5), C (–3, 4) and D (–2, 2).*" ... more

Click on a topic below for suggested lesson starters, resources and activities from Transum.

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