NC Math 2 Review for Exam

On a treasure map, the actual distance is directly related to the scaled distance.  If 15 miles is represented by 3 centimeters, then how many centimeters on the treasure map are equivalent to 135 miles?

• 27 cm
• 675 cm
• 529 cm
• 32 cm

If y varies inversely as x and x=5 when y=20, then what is the constant of variation, k? 

• 121
• 4
• 100
• 6

Is the given table a direct variation? If so, what is the constant of variation?

• Yes; 1/3
• Yes; 3
• Yes; 5
• No

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

A card is drawn from a bag containing 9 cards. The 9 cards are 3, J, C, 6, E, 8, 9, 5, and A. Find the probability of selecting a C or an even number.

• 1/9

• 2/9

• 3/9

• 4/9

What expression is equivalent to x² - 81?

• (x + 81)(x -1)
• (x + 9)(x + 3)(x - 3)
• (x - 9)(x - 9)
• (x - 9)(x + 9)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

The equation

y = 461.19x + 3,492 represents the value of a work of art from 1964 to 2005. What does the number 461.19 represent?

• The value of the work of art in 1964

• The value of the work of art in 2005

• The yearly decrease in value

• The yearly increase in value

Tags

CCSS.HSF.LE.B.5

CCSS.HSS.ID.C.7

What is the solution to the system below?

8x + 4y = 12

y = -2x + 3

• (0,3)

• (3,0)

• No solution

• Infinitely many solutions

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

What is the value of the x-coordinate in the system below?

x + 2y = -3

x - y = -12

• -9

• -7

• 3

• 9

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation s(t) = –16t² + 64t + 80. What will be the object's maximum height? 

• 2 ft
• 80 ft
• 144 ft
• 64 ft

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

A paper copier reduces paper dimensions by 25% each time it copies.  If the design on the paper is 7 inches wide before it is copied, how wide is it after you copy it 5 times?

• 5.25 inches
• 1.66 inches
• 2.21 inches
• 21.36 inches

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2