To represent the situation described for the parachute designs in an egg-drop project, we need to determine how the height \(y\) changes with respect to time \(x\).
Both eggs are dropped from an initial height of 10 feet.
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The first design causes the egg to fall at a rate of 5 feet per second. Thus, the height of the egg at time \(x\) seconds can be described by the equation: \[ y = 10 - 5x \]
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The second design causes the egg to fall at a rate of 3 feet per second. Therefore, the height of that egg at time \(x\) seconds can be represented with the equation: \[ y = 10 - 3x \]
Combining these two equations into a system, we have:
\[ \begin{cases} y = 10 - 5x \ y = 10 - 3x \end{cases} \]
Thus, the correct choice from the provided options is:
\[ \begin{cases} y = 10 - 5x \ y = 10 - 3x \end{cases} \]