Question

(4 points) Three classmates are working with three different expressions. Each classmate substitutes in the value x=3 into their expression. Whitney Theo Erin 4x−8 4x2−8 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 classmate's expression by substituting \( x = 3 \).

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

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

3. **Erin's expression**: \( 4x - 8 \) (which is the same as Whitney's)
\[
4(3) - 8 = 12 - 8 = 4
\]

Now, summarizing their results:
- Whitney: 4
- Theo: 28
- Erin: 4

Among the results, **Theo produced the largest value**, which is 28.