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

Question

into their expression.

Eleanor Parker Nellie
5x−10
5x2+3
5x−40
When substituting in the value x=4
, Eleanor would get a result of Response area, Parker would get a result of Response area, and Nellie would get a result of Response area



Response areaexpression produced the largest value.​​​​​​

Answer 1

Let's evaluate each expression using \( x = 4 \).

Eleanor's expression: \[ 5x - 10 \] Substituting \( x = 4 \): \[ 5(4) - 10 = 20 - 10 = 10 \]

Parker's expression: \[ 5x^2 + 3 \] Substituting \( x = 4 \): \[ 5(4^2) + 3 = 5(16) + 3 = 80 + 3 = 83 \]

Nellie's expression: \[ 5x - 40 \] Substituting \( x = 4 \): \[ 5(4) - 40 = 20 - 40 = -20 \]

Now we can summarize the results:

• Eleanor: \( 10 \)
• Parker: \( 83 \)
• Nellie: \( -20 \)

Among these results, the largest value produced is from Parker with a result of 83.