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 Nelliewould get a result of Response area



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

The option "Eleanor's" (8 of 10) has been selected. Press tab to choose a response area, and spacebar to insert it. Press escape to cancel.

Answer 1

Let's evaluate each of the expressions by substituting \( x = 4 \).

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

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

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

Now let's summarize the results:

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

Thus, Parker produced the expression with the largest value.

So, the answers are:

• Eleanor would get a result of 10.
• Parker would get a result of 83.
• Nellie would get a result of -20.

The response area for expression with the largest value is Parker's.