TEKS.MATH.9-12.II.A

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

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TEKS.MATH.9-12.II.A

Find the inverse of  = -3x + 3

• f^-1(x) = -3x + 1
• f^-1(x) = -1/3x + 1
• f^-1(x) = -1/3x - 1
• f^-1(x) = 1/3x + 1

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TEKS.MATH.9-12.II.A

Write equation of the line containing (0,0) and (1,3)

• y = 1/3x + 2  2/3
• y = 3x + 2 2/3
• y = 1/3x + 0
• y = 3x + 0

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TEKS.MATH.9-12.II.A

Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes.  Which system of equations represents the situation?

• 3x + 2y = 315
  2x + 4y = 450
• 3x + 2y = 450
  2x + 4y = 315
• 2x + 2y = 315
  3x + 4y = 450

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TEKS.MATH.9-12.II.A

Complete the Square
x² - 10x + ____

• x² + 10x - 100
• x² - 10x + 100
• x² + 10x - 25
• x² - 10x + 25

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TEKS.MATH.9-12.II.A

The note middle C on a piano is tuned so that the string vibrates at 262 Hertz. Tuning the notes is determined by equation 262 ⋅ (2^n/12), where n takes the values of 1 through 11. Find the tuning, rounded to the nearest Hertz, for notes 2 and 4. Select all.

• 278

• 294

• 330

• 371

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TEKS.MATH.9-12.II.A

If f(x)=x+5, what is f^-1(x)?

• (x + 5)²

• x - 5

• (x + 5)^-1

• undefined

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TEKS.MATH.9-12.II.A

Write as an equation: the quotient of a number h and 4 is 5

• 4h = 5

• 5 + 4 = h

• h ÷ 4 = 5

• 4 + h = 5

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TEKS.MATH.9-12.II.A

What is the radius of the circle with this equation x² + y² - 10x + 8y - 23 = 0?

• 4

• 2

• 8

• 23

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TEKS.MATH.9-12.II.A

Bentuk sederhana dari ³log54 - ³log4 + ³log6 = ...

• ³log81

• ³log15

• ³log9

• ³log3

• ³log1

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TEKS.MATH.9-12.II.A