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Advocard [28]
2 years ago
7

D = -38t + 220

Mathematics
1 answer:
Kitty [74]2 years ago
4 0

Answer: 38 meters per second

Step-by-step explanation:

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Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

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Here (h, k) = (2, - 4) , thus

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To find a substitute (3, - 1 ) into the equation

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Thus

y = 3(x - 2)2 - 4 ← equation in vertex form

   = 3(x² - 4x + 4) + 4

    = 3x² - 12x + 12 + 4

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The Answer above The Image

Step-by-step explanation:

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