Question

melissa collected the data in the table.
when x = 4, what is the residual?

x	given	predicted	residual
1	2	1	1
2	3	4	-1
3	8	7	1
4	9	10	?

-3
-1
1
3

Explanation:

Step1: Recall Residual Formula

Residual is calculated as \( \text{Residual} = \text{Given} - \text{Predicted} \).

Step2: Apply Formula for \( x = 4 \)

For \( x = 4 \), Given value is \( 9 \), Predicted value is \( 10 \). So, \( \text{Residual} = 9 - 10 = -1 \).

Answer:

-1