411 REFERENCE · Wikibooks
Arithmetic Course/Linear Function
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Linear Function
Linear Function is a function of a Straight Line
General Form
Straight Line goes through point (0,0)
For every x there is y = x
x | y
-2 | -2
-1 | -1
0 | 0
1 | 1
2 | 2
If f(x) = y Then f(x) represents a Straight Line through point (0,0) with Slope equals 1
Straight Line goes through two points
If there is a Straight Line goes through 2 points (xo,yo) , (x,y)
Straight Line goes through Two Intercept Points
When
x = 0 y = b
y = 0 x = a
Function
of a Straight Line that cuts the x axis at (0,a) and the y axis at (0,b)