Pre-Calc Final Exam

Find B-A

• -3 1

  7 -1

• 1 0

  1 -4

• 4 0

  -6 1

• not possible because rows do not match columns

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Tags

CCSS.HSN.VM.C.8

CCSS.HSN.VM.C.6

Multiply

• 20     15    -10
  30     -5         0
• -20      15     -10
  30     -5          0
• 1        8       3
  11     4        5
• 20     -15     10
  -30         5        0  

Tags

CCSS.HSA.APR.A.1

find: B*A

• 47     30
  9     5
• 17     15
  42     35
• 10     25
  7     1
• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

Find the average rate of change of f(x)=2x²+3x-1 from 1 to 2.

• 18

• -9

• 9

• 3

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is the domain?

• D : (-∞, -3) ∪ (-3, ∞)

• D : (-∞, 1) ∪ (1, ∞)

• D : (-∞, 3) ∪ (3, ∞)

• D : (-∞, -1) ∪ (-1, ∞)

Solve by factoring.
x² + 2x - 8 = 0

• 4 and 2
• 4 and -2
• -4 and 2
• -4 and -2

Tags

CCSS.HSA-REI.B.4B

If f(x) = 3x-1 and g(x) = x²+2,

what is (f ° g)(x) ?

• 3x² +5

• x² +1

• 3x² +1

• 3x² +6

Tags

CCSS.HSF-BF.A.1C

Is this graph a function or not a function? 

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

If f(x)=3x-1 and g(x)=2x²-3, what is the value of f(2)+g(3)?

• 5
• 13
• 20
• 38

Tags

CCSS.HSF.IF.A.2