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OCR A Level Maths

Curve Sketching

Explore the roots and intercepts of cubic graphs
Explore the roots and shapes of quartic functions
Explore reciprocal graphs
Transformations of sin, cos and tan
Matching Polynomials
You can select ten green polynomial curves on this page.
Selecting the order of the curve, and using the sliders to match the blue dashed curve to the green curve will reveal the equation in each case, but can you say what the equation is before making the match?
Coordinate Geometry - Rational Curves - y=(x-a)/(x-b)
The graph of $\color{blue}{y = { {x - a} \over {x - b} } }$

Change the values of $\color{blue}{a}$ and $\color{blue}{b}$ and observe the effect this has on the curve and its asymptotes.

Coordinate Geometry - Asymptotes - Asymptotes of y=a/(x-b)
An asymptote is a line towards which a given curve is approaching but never meets. Asymptotes are often vertical or horizontal lines, but can also be at an angle.

The graph displayed is described by the Cartesian equation: $\color{blue}{y = {{a} \over {x - b}}}$.

Change the values of $\color{blue}{a}$ and $\color{blue}{b}$ and observe the effect this has on the curve and its asymptotes. What are the equations of these asymptotes?
Odd and Even Functions
Functions with the property that f(-a) = f(a) for all values of a are called even.
Functions with the property that f(-a) = -f(a) for all values of a are called odd.
Drag the sample point to help decide whether each of the 10 functions given below are odd, even or neither.
What geometric properties do odd and even functions have?
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