Which of the following ordered pairs is part of the solution set for the equation y=2.5x−2

?

Option #1: (−2,0)


Option #2: (2,5)


Option #3: (2,3)


(1 point)
Option #
is part of the solution set for the equation.

1 answer

To determine which ordered pairs are part of the solution set for the equation \( y = 2.5x - 2 \), we can substitute the x-values from each ordered pair into the equation and see if the resulting y-value matches.

  1. Option #1: (-2, 0)

    • Substitute \( x = -2 \): \[ y = 2.5(-2) - 2 = -5 - 2 = -7 \]
    • This does not match the y-value (0).
  2. Option #2: (2, 5)

    • Substitute \( x = 2 \): \[ y = 2.5(2) - 2 = 5 - 2 = 3 \]
    • This does not match the y-value (5).
  3. Option #3: (2, 3)

    • Substitute \( x = 2 \): \[ y = 2.5(2) - 2 = 5 - 2 = 3 \]
    • This matches the y-value (3).

Thus, Option #3: (2, 3) is part of the solution set for the equation.