Three classmates are working with three different expressionsEach classmate substitutes in the value x = 3 into their expression Whitney Theo Erin 4x - 84x ^ 2 - 8; 4 ^ x - 8 When substituting in the value x = 3 Whitney would get a result of Theo would get a result of and Erin would get a result of expression produced the largest value

1 answer

Let's evaluate each classmate's expression by substituting \( x = 3 \).

  1. Whitney's expression: \[ 4x - 8 \] Substituting \( x = 3 \): \[ 4(3) - 8 = 12 - 8 = 4 \]

  2. Theo's expression: \[ 4x^2 - 8 \] Substituting \( x = 3 \): \[ 4(3^2) - 8 = 4(9) - 8 = 36 - 8 = 28 \]

  3. Erin's expression: \[ 4^x - 8 \] Substituting \( x = 3 \): \[ 4^3 - 8 = 64 - 8 = 56 \]

Now, let's summarize the results:

  • Whitney: \( 4 \)
  • Theo: \( 28 \)
  • Erin: \( 56 \)

From these results, Erin produced the largest value, which is 56.