TEKS.MATH.9-12.VII.A

Which of the following represents direct variation?

• y = kx
• y = k/x
• y = x/k
• y = mx + b

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TEKS.MATH.9-12.VII.A

Which equation is a quadratic function reflected over the x-axis and shifted up 2.

• y = x² + 2
• y = -x² + 2
• y = x² - 2
• y = -(x + 2)²

Tags

TEKS.MATH.9-12.VII.A

The function f(x)=0.49x models the cost to purchase x pounds of apples from the grocery store.  What is the most appropriate domain for the function?

• All integers
• All rational numbers
• All non-negative integers
• All non-negative rational numbers

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TEKS.MATH.9-12.VII.A

What is the inverse of the function?

• f^-1(x) = x² - 3, x ≥ -3
• f^-1(x) = x² - 3, x ≥ 0
• f^-1(x) = x² + 3, x ≥ -3
• f^-1(x) = x² + 3, x ≥ 0

Tags

TEKS.MATH.9-12.VII.A

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1
• f(x) = (x + 2)² - 1
• f(x) = -(x + 2)² - 1
• f(x) = -(x - 2)² - 1

Tags

TEKS.MATH.9-12.VII.A

TEKS.MATH.9-12.II.A

TEKS.MATH.9-12.II.D.2

TEKS.MATH.9-12.II.D.1

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

5.  Write an equation for the cosine function with amplitude 3, period 2pi, phase shift of pi, and vertical shift of 5.

• y = 5cos(x - pi) + 3
• y = 3cos(x - pi) + 5
• y = 3cos(2x - pi) + 5
• y = 5cos(2x - pi) + 3

Tags

TEKS.MATH.9-12.VII.A

What's the name of the inverse of g(x)?

• f(x)
• f^-1(x)
• y
• g^-1(x)

Tags

TEKS.MATH.9-12.VII.A

What is the equation of the graph below?

• f(x) = I x I + 1
• f(x) = I x I - 1
• f(x) = -I x I + 1
• f(x) = -I x I - 1

Tags

TEKS.MATH.9-12.VII.A

TEKS.MATH.9-12.II.A

What is the Domain?

• -3 < x ≤ 3

• -4 ≤ x < 5

• -4 ≤ y ≤ 5

• -3 < y ≤ 3

Tags

TEKS.MATH.9-12.VII.A

What is the domain?

• x = 2

• All real numbers

• y = 2

• None of these

Tags

TEKS.MATH.9-12.VII.A