Math Functions

What is the y -intercept (b) on this graph?

• 6

•  0

• 5

• -5

Find the slope of the line.

• -2

• 2

• -1

• 1

Tags

CCSS.8.EE.B.5

Write the equation for the line.

• y= -1x+3

• y= 3x+1

• y=(1/4)x+3

• y= x+3

A set of instructions says to subtract 5 from a number n and then double that result, calling the final result p. Which function rule represents this set of instructions?

• p = 2(n – 5)

• p = 2n – 5

• n = 2(p – 5)

• n = 2p – 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following is NOT a function?

• {(2, 3), (4, 7), (8, 6)}

• {(2, 2), (4, 4), (8, 8)}

•  {(2, 3), (4, 3), (8, 3)}

• {(2, 3), (2, 7), (8, 6)}

Tags

CCSS.8.F.A.1

What is the unit rate of the graph above?

• $60 per week

• 1/$30 per week

• $45 per week

• $120 per week

• $30 per week

Tags

CCSS.HSF.IF.B.4

A linear function includes the ordered pairs (2, 5), (6, 7), and (k, 11). What is the value of k?

• 8

• 10

• 12

• 14

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The point (4, 3) is rotated 90^o clockwise about the origin. What are the coordinates of the resulting point?

•  (-3, 4)

• (-4, 3)

•  (4, -3)

• (3, -4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A boat traveled 336 miles downstream and back. The trip downstream took 12 hours. The trip back took 14 hours. What is the speed of the boat in still water?

(enter the number only for your answer.)

(a)  

Tags

CCSS.HSA.CED.A.1

Which of the following functions are linear? Select all that apply

• y = x+3

• y = x²

• A = πr²

• P = 2l+2w

• y = x

Tags

CCSS.8.F.A.3