What is the radius of the circle given by the equation \(x^2 + y^2 = 15\)? The value of \(r^2 = 15\) so the radius of the circle is \(\sqrt{15}\).

Another Method to Measure the Area of a Circle There is a trick to measure the area of a circle. In fact, this was a trick people used in the past to find the area under a curve on a graph (before ...

Graphs of Sine and Cosine 1.2 An applet illustrating ... Just change the function and the initial value and compute away! Circle, Ellipses and Lissajous Parametric Curves Applet 10.1 Some of the most ...

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For example, the larger circle in Figure 1a is 14 times ... Accuracy in their study does not imply reading out precise values from data points in graphs. Communicating with graphs depends on ...

Save guides, add subjects and pick up where you left off with your BBC account. As the tangent is a straight line, the equation of the tangent will be of the form \(y = mx + c\). We can use ...