Melissa collected the data in the table.

when x = 4, what is the residual?

a.) –3
b.) –1
c.) 1
d.) 3

A residual is the difference between the actual value and the predicted value. If there is a scatter plot with a line of best fit, the residual would be the vertical distance between the actual point and the line of best fit.

For our question, the table already gives the "given" and "predicted" values. Hence, the residual is the different between the "given" and "predicted" values.

If you look at the first three rows, you will see that residual = given - predicted.

So, when , residual = . Answer choice B is correct one.

ANSWER: B

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

37 = ending with 7

unit's digit in the cube..3

56 = ending with 6

unit's digit in the cube..2

133 = ending with

unit's digit in the cube..7

hope it : ( : )