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the angle that a line makes with the positive x-axis measured in an anticlockwise direction.
a rule applied to variables to make an equation, so that there is only one answer (output value...
a graph with the cumulative frequency plotted on the vertical axis against the range of data...
a line drawn from the vertex of a triangle perpendicular to the side opposite the vertex.
a sequence with a constant second difference between consecutive terms has a quadratic general...