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Anonymous
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Natural Numbers
- The counting numbers (1,2,3,4,5...)
- All positive numbers
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Square Numbers
Numbers that create a perfect square (1,4,9,16,25...)
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Triangular Numbers
Numbers that create a perfect triangle (1,3,6,10...)
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Rectangular Numbers
Any composite number
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Whole Numbers
Natural numbers and 0
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Integers
Positive numbers, negative numbers, 0
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Rational numbers
A number represented by a ratio or a fraction where the denominator is not 0.
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The rule for multiplying and dividing integers:
- Same sign=always positive
- different signs=always negative
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Horizontal Slope
A horizontal slope will have an equation of where it meets the y axis. For example, if it crossed the y axis at +5, the equation would be y=5. The slope would be 0.
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Vertical slope
A vertical line will have an undefined slope because it will intersect the y axis at an indefinite amount of points.
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Slope
a representation of a rate of change as a line on a graph
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X axis
The horizontal axis representing the independent variable.
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Y axis
The vertical axis representing the dependent variable
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Variable
an unknown value in an equation that is usually represented by a letter, such as x, y, r, s, t, a, b, n or k.
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Volume
The amount of space within a 3 dimensional object, measured in cm cubed
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Area
the space within a 2 dimensional object, measured in units squared
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Diameter of a circle
the distance across a circle
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radius of a circle
the distance from the edge of the circle to the centre
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Circumference of a circle
- the perimeter of the circle
- formula: 2 x pi x radius
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Area of a circle
formula: pi x radius2
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