List of public pages created with Protopage

__Line graphs__

Line graphs show how information is linked together, if the line goes diagionally up to the right then there is a positive correlation and if it goes to diagonally up to the left there is a negative correlation.

The gradients of these lines are 2 & -1/2.

*A histogram is way of displaying data. It looks like a bar chart but it is completely different and much harder to plot. *

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*Points to remember ~*

*-A/ A* grade work*

*-Area of the bar instead of the height it reaches*

*-Uneven class widths*

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__FORMULA__

Frequency Density = Frequency รท Class Width

**Simultaneous equations liner and quadratic.**

a = 5.2

b = 7.1

c = 42

Type into the calculator ' 1/2 x 5.2 x 7.1 x sin(42)

sin=^{opposite} / _{hypotenuse}

cos=^{adjacent} / _{hypotenuse}

tan=^{opposite} / _{adjacent}

*SOH ~ Sin, Oppostie / Adjacent *

*CAH ~ Cos, Adjacent / Hypoteneuse*

*TOA ~ Tan, Opposite / Adjacent*