Asked by Dinh
A satellite dish in storage has parabolic cross sections and is resting on its vertex. A point on the rim is 4 ft high and is 6 ft horizontally from the vertex. How high is a point which is 3 ft horiozntally from the vertex? Draw a sketch and solve.
Answers
Answered by
Steve
if we let the vertex be at (0,0),
y = 4(x/6)^2 = x^2/9
so, what's y(3)?
y = 4(x/6)^2 = x^2/9
so, what's y(3)?
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