Arithmetic Course/Linear Function
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Linear Function[edit]
Linear Function is a function of a Straight Line
General Form[edit]
Straight Line goes through point (0,0)[edit]
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[edit]
If there is a Straight Line goes through 2 points (x_{o},y_{o}) , (x,y)
Straight Line goes through Two Intercept Points[edit]
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)