TEKS.MATH.9-12.VII.B

Find the second derivative of f(x) = x² + e^x  - cosx

• f"(x) = 2 + e^x + cosx
• f"(x) = 2x + e^x + cosx
• f"(x) = 2x + xe^x - cosx
• f"(x) = 2x + e^x + sinx

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TEKS.MATH.9-12.VII.B

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• (2)^x
• 8

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TEKS.MATH.9-12.VII.B

TEKS.MATH.9-12.VII.B.1

What is the domain of the graph?

• y≥1
• x ≥ 1
• All real numbers
• none of these

Tags

TEKS.MATH.9-12.VII.B

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down

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TEKS.MATH.9-12.VII.B

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

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TEKS.MATH.9-12.VII.B

What is the domain of the graph?

• [-7, 5)
• (-7, 5]
• [-3, 1)
• (-3, 1]

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TEKS.MATH.9-12.VII.B

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

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TEKS.MATH.9-12.VII.B

The elements of f(x) are (-7, 3), (-1, 6) and (8, -3). What is the range of the function?

• {-7, -1, -8}
• {-3, 6}
• {-3, 3, 6}
• All real numbers

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TEKS.MATH.9-12.VII.B

Find the vertex   y = x² - 6x + 5
Remember, x = -b/2a.
Then plug-in x to find y.

• V(-3, 8)
• V(-3, - 10)
• V(3, -4)
• V(3, 5)

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TEKS.MATH.9-12.VII.B

What is the range? 

• [-∞, +∞]
• [-2, 2]
• (-∞, ∞)
• [0, 2]

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TEKS.MATH.9-12.VII.B

TEKS.MATH.9-12.VII.A