Question

Three classmates are working with three different expressions. Each classmate substitutes in the value x=4
into their expression.

Kaleigh Hank Sonny
5x+7
5x2+7
5x+7
When substituting in the value x=4
, Kaleigh would get a result of
, Hank would get a result of
, and Sonny would get a result of
.




expression produced the largest value.​​​​​​

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Answer 1

Let's evaluate each classmate's expression by substituting \( x = 4 \).

**Kaleigh's expression:**
\[ 5x + 7 \]
Substituting \( x = 4 \):
\[ 5(4) + 7 = 20 + 7 = 27 \]

**Hank's expression:**
\[ 5x^2 + 7 \]
Substituting \( x = 4 \):
\[ 5(4^2) + 7 = 5(16) + 7 = 80 + 7 = 87 \]

**Sonny's expression:**
\[ 5x + 7 \] (same as Kaleigh)
Substituting \( x = 4 \):
\[ 5(4) + 7 = 20 + 7 = 27 \]

Now, we can summarize their results:
- Kaleigh would get a result of **27**.
- Hank would get a result of **87**.
- Sonny would get a result of **27**.

Comparing these results, Hank's expression produced the largest value.