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PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoStraight line:
An equation of first degree and of the form \(ax + by + c = 0\) is called as "straight line" in \(xy\) - plane.
Here, \(x\) and \(y\) are variables,
\(a\), \(b\) and \(c\) are real numbers, and atleast one of \(a\), \(b\) are non - zero.
The graphical representation of a straight line is:
![1.png](https://resources.cdn.yaclass.in/3ad60eea-a3a3-443d-a4c6-7a06e28aa5d6/1w300.png)
Equation of coordinate axes
The \(X\) - axis and \(Y\) - axis together form the graph, and they are called the cartesian plane or the coordinate axes.
A point on the coordinate axes:
If a point lies on the \(x\) - axis, then the coordinate of the point is \((x,0)\).
The equation of a point lying on the \(x\) - axis is \(y = 0\).
Consider plotting the points on the \(x\) - axis and observe the equation we get:
![2.png](https://resources.cdn.yaclass.in/ffa8da23-fcf6-4106-9877-cd5efbd7fdda/2w400.png)
Similarly, if a point lies on the \(y\) axis, then the coordinate of the point is \((0,y)\).
The equation of the point on the \(y\) axis is \(x = 0\).
Consider plotting the points on the \(y\) axis and observe the equation we get:
![3.png](https://resources.cdn.yaclass.in/09fe0a8e-c950-4bd4-a74f-c77ad3088ea1/3w400.png)