28 POINTS!!!!!! Solve for x. Please Help
2 answers:
Answer:
The third choice,
Step-by-step explanation:
One way to do it is to substitute in the potential answers. I'll show you here.
<u>Choice 1</u>
We can see that this is false, so the answer cannot be choice 1.
<u>Choice 2</u>
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This is also false, so the answer cannot be choice 2.
<u>Choice 3</u>
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This is true. Let's see if choice 4 works.
<u>Choice 4</u>
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This is not true. Therefore, 3 is correct.
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Answer:
Horizontal distance = 0 m and 6 m
Step-by-step explanation:
Height of a rider in a roller coaster has been defined by the equation,
y =
Here x = rider's horizontal distance from the start of the ride
i).
ii). Since, the parabolic graph for the given equation opens upwards,
Vertex of the parabola will be the lowest point of the rider on the roller coaster.
From the equation,
Vertex → (3, 5)
Therefore, minimum height of the rider will be the y-coordinate of the vertex.
Minimum height of the rider = 5 m
iii). If h = 8 m,
(x - 3)² = 9
x = 3 ± 3
x = 0, 6 m
Therefore, at 8 m height of the roller coaster, horizontal distance of the rider will be x = 0 and 6 m