Q4 BM Review

What is the equation of the line of best fit shown on the scatter plot? Use the y-intercept and another point to find the slope.

• y = x + 70

• y = -1.5x - 70

• y = -x - 70

• y = -x + 70

What is the slope of a line that passes through the points (8, 4) and (1, -5)? If necessary, leave your answer as an improper fraction.

• 9/7

• 7/9

• -9/7

• -7/9

Tags

CCSS.8.EE.B.5

Does this table represent a function, yes or no? Why or why not?

• Yes, because each input (x) has only one output (y).

• No, because each input (x) has more than one output (y).

• No, because each output (y) has only one input (x).

• Yes, because each output (y) has more than one input (x).

Tags

CCSS.8.F.A.1

If the value 5 is input into the function y = -4x + 81, what would the output be?

• 61

• 77

• 45

• 20

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the slope of a line that passes through the points (-3, 4) and (10, 4)? If necessary, leave your answer as an improper fraction.

• 0

• 1

• 4/13

• undefined

Tags

CCSS.8.EE.B.5

• V = 288π ft³

• V = 18π ft³

• V = 24π ft³

• V = 216π ft³

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Complete the table so that it does not represent a function of x. How do you know the new ordered pair would not make this a function?

• Add a new pair (6, 20) This would not make it a function because the same x-value has two different y-values.

• Add a new pair (7, 18). This would not make it a function because the y-value is repeated.

• Add a new pair (6, 18). This would not make it a function because the x-value is repeated.

• Add a new pair (8, 20). This would not make it a function because the x-value is different.

Tags

CCSS.8.F.A.1

Which equations represent functions that are nonlinear? Select all that apply.

• y = 8/x + 8

• y + 6 = 4 - x

• y = mx + b

• y = 4x - 5 + 6x + 1

Tags

CCSS.8.F.A.3

What type of correlation is displayed in this scatter plot?

• Weak negative

• No correlation

• Strong positive

• Weak positive

• Strong negative

Tags

CCSS.HSS.ID.B.5

10a. The football team is selling t-shirts for a fundraiser. Before the fundraiser starts, they have $255 saved in their account. Write an equation in terms of the amount of money the team will raise, y, depending on the number of t-shirts sold, x.

• y = 12x + 255

• y = 255x + 12

• y = 12x - 255

• y = 255x - 12

Tags

CCSS.HSF-BF.A.1A