Two students were testing the parachute designs they made for an egg-drop project. Both students dropped their eggs from a height of 10 feet. One design made the egg fall at a rate 5 feet per second, and the other design made the egg fall at a rate of 3 feet per second. If x represents the time in seconds that the egg falls and y represents the height of the egg, which system of equations represents the situation described?(1 point)

Responses

{y=5x−10y=3x −10
enlarged left brace start layout first row y equals 5 x minus 10 second row y equals 3 x minus 10 end layout

{y=10−5xy=10−3x
enlarged left brace start layout first row y equals 10 minus 5 x second row y equals 10 minus 3 x end layout

{y=10+5xy=10+3x
enlarged left brace start layout first row y equals 10 plus 5 x second row y equals 10 plus 3 x end layout

{y=−5xy=−3x

1 answer

To represent the situation described, we need to establish a relationship between the height \( y \) of the egg and the time \( x \) it has been falling, based on the rates at which the eggs fall.

  1. First Student (falling at a rate of 5 feet per second):

    • The egg starts at a height of 10 feet, and as time \( x \) increases, the height decreases at 5 feet per second.
    • The equation for this would be: \[ y = 10 - 5x \]
  2. Second Student (falling at a rate of 3 feet per second):

    • Similarly, this egg also starts at a height of 10 feet but decreases at a rate of 3 feet per second.
    • The equation for this would be: \[ y = 10 - 3x \]

Thus, the system of equations that represents the situation is: \[ \begin{cases} y = 10 - 5x \ y = 10 - 3x \end{cases} \]

This matches the option: \({y=10−5x , y=10−3x} \)

So the correct response is the second option: \[ {y=10−5x, , y=10−3x} \]