A greenhouse owner wants to test the effectiveness of a new fertilizer on African violets. She has 60 violet seedlings that were
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Assume the parabola is placed on a graph where the x-axis is the top of the dish.
The vertex is then at (0,-30) The x-intercepts or zeros are at (-30,0) and (30,0)
The equation of such parabola would be:
Plug in vertex to find value of 'a'
Now find the focus given that
Answer: the microphone should be placed 7.5 inches from vertex.
The vertex is then at (0,-30) The x-intercepts or zeros are at (-30,0) and (30,0)
The equation of such parabola would be:
Plug in vertex to find value of 'a'
Now find the focus given that
Answer: the microphone should be placed 7.5 inches from vertex.
Answer:
x = 8,
Step-by-step explanation:
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for it is a denominator. Multiply both sides with the product of the two denominators:
:
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Multiply both sides by one over the coefficient of x:
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