A tunnel is in the shape of a parabola. The maximum height is 31 m and it is 13 m wide at the base as shown below.

Mathematics

1 answer:

yan [13]2 years ago

6 0

Using the given values from the problem and the illustration, three points are known which are (0,0), (6.5,-31), (-6.5,-31). The first step in solving this problem is to determine the equation of the parabola.
y = ax²
-31 = a(6.5)²
-31 = 42.25a
a = -31/42.25
a = -124/169

Therefore, the equation of the parabola is y = (-124/169)x². The value 4.5 is then substituted in the equation as x to get the answer which is 16.14 meters.

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tatyana61 [14]

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3 years ago

How do you graph y=x^2-2x-3

lara [203]

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A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.

The given quadratic equation is:-

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So the value of x will be (-1,3) so the quadratic curve will cut the intercepts at x(-1,3). The graph of the quadratic equation is attached with an answer.

To know more about graphs follow

brainly.com/question/25020119

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