(4 points)

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
5x^2+7
5^x+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

Answer 1

Let's calculate the results for each classmate's expression when \( x = 4 \).

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

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

3. Sonny's expression: \( 5^x + 7 \) \[ 5^4 + 7 = 625 + 7 = 632 \]

Now we have the results:

• Kaleigh: 27
• Hank: 87
• Sonny: 632

The expression that produced the largest value is Sonny's expression \( 5^x + 7 \) with a result of 632.