Dear students,
Math Lobby will be teaching you how to find the gradient of a straight line.
Finding gradient of a straight line is covered under the topic Coordinate Geometry in Secondary 2 Math, Secondary 3 Express E Math and A Math, Secondary 3 Normal Math and A math.
Firstly, we have to understand the term gradient of a line. Gradient of a line represents the steepness of a line. From this, we can infer that the larger the gradient, the steeper the line.
Secondly, we have to understand the terms in the gradient formula: (Y2-Y1)/(X2-X1)
X1: X coordinate of the 1st point
X2: X coordinate of the 2nd point
Y1: Y coordinate of the 1st point
Y2: Y coordinate of the 2nd point
Lastly, we will learn how to apply the gradient formula to find the gradient of a straight line.
Example:
Find the gradient of the line connecting points A and B where point A is (2,4) and point B is (6,10)
Answer:
Gradient= (Y2-Y1)/(X2-X1)
= (10-4)/(6-2)
= 6/4
= 3/2
The gradient is 3/2
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