TEKS.MATH.9-12.II.A

What is the equation of the circle, with centre (3,8) and radius 4 units?

• (x - 3)^2 + (y - 8)^2 = 4
• (x - 3)^2 + (y - 8)^2 = 16
• (x + 3)^2 + (y + 8)^2 = 16
• (x + 3)^2 + (y + 8)^2 = 4

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TEKS.MATH.9-12.II.A

x² - 16

• Prime
• ( x - 4) ( x + 4) 
• ( x - 8) ( x + 8) 
• ( x - 4) ( x - 4) 

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TEKS.MATH.9-12.II.A

Is the following item an expression, equation, or inequality.
13 + 6

• Expression
• Equation
• Inequality

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TEKS.MATH.9-12.II.A

8(x + 5)

• 8x + 13
• 8x + 5
• 8x + 40
• 13x

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TEKS.MATH.9-12.II.A

Find the product.
(x + 7)²

• x² + 7x + 7x + 49
• x² + 7x + 7
• 7x² + x + 7
• x² + 14x + 49

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TEKS.MATH.9-12.II.A

(3x − 6)(7x + 7)

• 21x² − 63x + 42
• 21x² − 21x − 42
• 21x² − 42
• 21x² + 63x + 42

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TEKS.MATH.9-12.II.A

When given two points and asked to write an equation, what is your first step?

• Find the slope
• Find the y-intercept
• Find the x-intercept
• Write the equation

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TEKS.MATH.9-12.II.A

Determine the value of the discriminant and name the nature of the roots for the following:
x² + 7x + 13
Remember:  b² - 4ac

• 400, 2 real root 
• 0, 1 real root with a multiplicity of 2
• -400, 2 imaginary roots
• -3, 2 imaginary roots

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TEKS.MATH.9-12.II.A

The sequence below shows the number of trees a nursery plants each year. 2, 8, 14, 20… Which formula could be used to determine the number of trees the nursery will plant next year, NEXT, if the number of trees planted this year, NOW is known? 

•  NEXT = 4 + NOW
• NEXT = 4 ∙ NOW
•  NEXT = 4 ∙ NOW + 2
• NEXT = NOW + 6

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TEKS.MATH.9-12.II.A

Which is an example of a cubic binomial?

• x³+5

• x²+3

• x²+5x-6

• 5x³

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TEKS.MATH.9-12.II.A