TEKS.MATH.9-12.II.A

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.  (Hint:  Simplify your equation.)

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

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TEKS.MATH.9-12.II.A

What is the equation of the graph shown?

• y=1/2cos2x
• y=1/2sin4x
• y=1/2cos4x
• y=4cos1/2x

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TEKS.MATH.9-12.II.A

James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

• 70(2)³⁵
• 70(2)⁵
• 2(70)⁵
• 5(70)²

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TEKS.MATH.9-12.II.A

solve f(x) = (5x-3)/ x
when x = 3

• -4
• 4

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TEKS.MATH.9-12.II.A

Write in exponential form.
log₂32 = 5

• 2^-5 = 32
• 2³² = 5
• 2⁵ = 32
• 32⁵ = 2

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TEKS.MATH.9-12.II.A

Identify A, B, and C if y=3x²-8+5x

• A=3, B=5, C=-8

• A=3, B=-8, C=5

• A=3x², B=5x, C=-8

• A=3x² , B=-8, C=5x

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TEKS.MATH.9-12.II.A

7x²-5x+3-2x²-2x-1

• 5x²-7x+2
• 9x²-3x+4
• 5x²+7x+2
• 6x²+2

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TEKS.MATH.9-12.II.A

How many terms does this expression have:
-27a³ + 9a² - 45a

• what are terms?
• 0 terms
• -45 terms
• 3 terms

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TEKS.MATH.9-12.II.A

Write the equation for a graph that is vertically compressed by a factor of 2/5 and shifted up 6.

• y=6|x|-2/5

• y=2/5|x|+6

• y=2/5|x+6|

• y=2/5|x-6|

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TEKS.MATH.9-12.II.A

f(n)=2n+1
g(n)=3n
Find f(n)+g(n)

• 5n+1
• -5n+1
• -2n+1
• -6n-1

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TEKS.MATH.9-12.II.A