Writing parametric equations
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2)Write a set of parametric equations for each of the following figures.
(i) the line segment with endpoints at (3,-5) and (-2,11), such that the parameter value t satisfies 0<=t<=1.
(ii)the lower half of the circle with center (-7,8) and radius 9
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Solution Summary
This provides of writing parametric equations for given figures.
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(1) find the direction vector, by subtracting
(-2, 11) -- (3, -5) = (-5, 16)
choose (3, -5) as the 'starting point'; then the equation of the line joining
(3, -5) to (-2, 11) becomes
(x, y) = (3, -5) + t(-5, 16), where t ...
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