add math (f4) coordinate geometry 6.4
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LOGO ADDITIONAL MATHEMATICS
FORM 4
ADDITIONAL MATHEMATICS
FORM 4 COORDINATE GEOMETRY
COORDINATE GEOMETRY
6.4 EQUATION OF STRAIGHT LINE 6.4 EQUATION OF STRAIGHT LINE
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6.4 6.4 EQUATION OF STRAIGHT LINEEQUATION OF STRAIGHT LINE
6.4.3
Finding the gradient of straight line usingX-intercept and y-intercept
6.42
Finding the gradient of a straight line
6.4.2
6.4.1
Determining x-intercept and y-intercept
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The x-intercept of a straight line is the x-coordinate where the Straight Line crosses the x-axis.
DefinitionX-INTERCEPT Y-INTERCEPT
The y-intercept of a straight line is the y-coordinate where line crosses the y-axis.
6.4.1 Determining the x-intercept and y-intercept
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x
y
y-intercept
x-intercept
The x-intercept of a straight line
is the x-coordinate where the Straight Line crosses the x-
axis
The y-intercept of a straight line is the y-coordinate where line
crosses the y-axis.
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Gradient is a quantity which measure how step a straight line is sloping with reference to the horizontal
The gradient of a straight line is the ratio of vertical distance tohorizontal distance
Gradient:
Gradient = Vertical line Horizontal line
@ m = y2-y1
x2-x1
6.4.2 Find the gradient of a straight line
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A (x1,y1)Horizontal distance
B (x2,y2)
verticaldistance
y
x
Gradient = Vertical line Horizontal line
m = y2-y1
x2-x1
gradient of a straight line is the ratio of vertical distance tohorizontal distance
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x
y
y-intercept
x-intercept
m = y2-y1
x2-x1
Gradient = Vertical line Horizontal line
RECALL PREVIOUS SUBTOPIC
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y
x
(0,b)
(a,0)
M
N
m = - y intercept x-intercept
6.4.3 Finding the gradient of a straight line by using x-intercept and y-intercept
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x
y
y-intercept
x-intercept
Determining x-intercept and y-intercept
Finding the gradient of a straight line
Finding the gradient of straight line usingX-intercept and y-intercept
Gradient = Vertical line Horizontal line
m = y2-y1
x2-x1
m = - y intercept x-intercept
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Have a nice day..