As the tangent is a straight line, the equation of the tangent will be of the form \(y = mx + c\). We can use perpendicular gradients to find the value of \(m\), then use the coordinates of P to ...
A tangent to a circle at point P is a straight ... {2}\), in to the formula \(y = mx + c\) gives: So the equation of the tangent \(y = -\frac{1}{2} x + 5\). Finally, the point where the tangent ...
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