Three classmates are working with three different expressions. Each classmate substitutes in the value x=3

Question

into their expression.

Whitney
4x−8

theo
4x^2−8

Erin
4x−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.​​​​​​

Answer 1

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

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

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

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

Now, summarizing the results:

• Whitney gets \( 4 \),
• Theo gets \( 28 \),
• Erin gets \( 4 \).

From these results, we can see that Theo's expression produced the largest value at \( 28 \).