Study Online and Download Notes of Mathematics 9th Unit 8: Linear Graph and their Application. In this unit you will learn Cartesian Plane and Linear Graphs, An Ordered Pair of Real Numbers, Recognizing an Ordered Pair and Cartesian Plane.

Study Online and Download Notes of

**Mathematics 9th Unit 8: Linear Graph and their Application**. In this unit you will learn Cartesian Plane and Linear Graphs, An Ordered Pair of Real Numbers, Recognizing an Ordered Pair and Cartesian Plane.

Identify pair of real numbers as an ordered pair.

- Recognize an ordered pair through different examples.
- Describe rectangular or Cartesian plane consisting of two number lines interesting at right angles at the point O.
- Identify origin (O) and coordinate axes (horizontal and vertical axes or x-axis and y-axis) in the rectangular plane.
- Draw different geometrical shapes (e.g., line segment, triangle and rectangle etc.) by joining a set of given points.
- Construct a table for pairs of values satisfying a linear equation in two variables.
- Plot the pairs of points to obtain the graph of a given expression.
- Choose an appropriate scale to draw a graph.
- Draw a graph from a given table of (discrete) values.
- Solve appropriate real life problems.
- Interpret conversion graph as a linear graph relating to two quantities which are in direct proportion.
- Read a given graph to know one quantity corresponding to another.
- Read the graph for conversions of the form.
- Solve simultaneous linear equations in two variables using graphical method.

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