TEKS.MATH.9-12.II.A

Convert to vertex form.

• y=1/3(x+3)² - 29
• y=1/3(x-3)² - 29
• y=1/3(x-9)² - 29
• y=1/3(x+9)² - 29

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TEKS.MATH.9-12.II.A

Complete the Square
x² + 6x = 5

• (x + 3)² = 5
• (x + 6)² = 9
• (x + 3)² = 14
• (x + 6)² = 14

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TEKS.MATH.9-12.II.A

The length, in inches, of a box is 3 inches less than twice its width, in inches. Which of the following gives the length, l inches, in terms of the width, w inches, of the box?

• l = 2w + 3
•  l =  w – 3
• l = 2w – 3
•  l =  w + 3

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TEKS.MATH.9-12.II.A

When Sue bought a candle, it was 10 inches tall. It burns at a rate of 1/4 inches per hour. What is the equation of the line in slope-intercept form that models this situation?

• y = -1/4x - 10
• y = -1/4x + 10
• y = 1/4x + 10
• y = 1/4x -10

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TEKS.MATH.9-12.II.A

Which of these represents slope-intercept form?

• y - y₁ = m(x-x₁)
• Ax + By = C
• y = mx + b
• a²+b²=c²

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TEKS.MATH.9-12.II.A

(3x² + 4x - 2) - (5x + 7)

• 3x² - x - 9
• 2x² - 9
• 3x² + 9x - 5
• 3x² - x + 5

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TEKS.MATH.9-12.II.A

What is the equation of a circle whose center is at (4,5) and whose radius is 6

• (x+4)² + (y+5)² = 6

• (x-4)² + (y-5)² = 36

• (x+4)² + (y+5)² = 36

• (x-4)² + (y-5)² = 6

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TEKS.MATH.9-12.II.A

What is the y-intercept in the equation y= -2x + 5

• -2
• 3
• 5
• Cannot be Determined

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TEKS.MATH.9-12.II.A

The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing.

• y = 8x + 50

• C = 50m +8

• y = 50x + 8

• C = 8m + 50

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TEKS.MATH.9-12.II.A

You have $729 in the bank on Day 1, $243 on Day 2, and $81 on Day 3. Write the explicit formula that expresses the sequence.

• a_n = 729(1/3)^n-1

• a_n = 729(3)^n-1

• a_n = 1/3(a_n-1)

• a_n = 1/3(729)^n-1

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TEKS.MATH.9-12.II.A