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natka813 [3]
2 years ago
12

The expression 16x2 + 4x + 125 represents the height, in feet, of a rock, x seconds after being thrown from a cliff. What does t

he 125
represent?
O A. the initial height of the rock
O B. the number of seconds it takes the rock to hit the ground
o C. the number of seconds it takes the rock to reach its maximum height
D. the maximum height of the rock
Mathematics
1 answer:
xeze [42]2 years ago
4 0

The motion of the rock thrown from the cliff which goes downwards due to

the gravitational force, is a free fall motion.

  • 125 represents; <u>A. The initial height of the rock</u>.

Reasons:

The given function that represents the height of the of the rock in feet <em>x</em> seconds after being thrown is; f(x) = 16·x² + 4·x + 125

At the initial height before being thrown from the cliff, we have;

The time, x = 0

The initial height is therefore;

The initial height f(0) = 16 × (0)² + 4 × (0) + 125 = 125

125 represents <u>A. The initial height of the rock</u>

Learn more about motion under gravity here:

brainly.com/question/7596138

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