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RUZIHAN ABDULLAHSMK PUTERI, SEREMBAN
COORDINATE
GEOMETRY
COORDINATE
GEOMETRY
FORM 4FORM 4www.ruzihan.wordpress.com
RUZIHAN ABDULLAHSMK PUTERI, SEREMBAN
Equation of straight line
Equation in gradient1
Equation in the general form2
Equation in the intercept form 3
The equation of a straight line can be expressed in three forms
Equation in the gradient form
m= gradientC=y-intercept
Equation in the general form
Equation in intercept form
a=x-interceptb=y-intercept
Example 1
Find the equation of thestraight line that passesthrough the point (3,-2) andhas gradient of 1has gradient of 1
4
Solution
Example 2
Find the equation of a straightline that passes through theline that passes through thepoint (-2,-3) and (-4,7).
Solution
Example 3
The x-intercept and y-interceptof the straight line MN are 4and 3 respectively. State theand 3 respectively. State theequation of the straight line MNin the intercept form
Solution
The equation of the straight lineMN is
Intercept form
Exercise
Thank You…http://www.ruzihan.wordpress.com