TEKS.MATH.9-12.II.C

Solve by factoring.
z² - 6z - 27 = 0

• z = 3 or z = 9
• z = 3 or z = -9
• z = -3 or z = 9
• z = -3 or z = -9

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TEKS.MATH.9-12.II.C

Solve by factoring.
z² - 18z + 81 = 0

• z = 9
• z = -9
• z = 9 or z = -9

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TEKS.MATH.9-12.II.C

What are two solutions to the polynomial:
x²+14x=0

• x=0, x= 14
• x=-14
• x= 1, x =10
• x= -14, x = 0 

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TEKS.MATH.9-12.II.C

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

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TEKS.MATH.9-12.II.C

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3
• f^-1(x) = -1/4x - 3
• f^-1(x) = 1/4x + 3
• f^-1(x) = - 4x - 3

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TEKS.MATH.9-12.II.C

The amount of money that Li spends on video games depends on how many games he purchases.  If Li has at most $90 to spend on games for his Xbox 360 and the games cost $22.50 each, what is the domain of this function?

• {0 ≤ x ≤ 90}
• {0 ≤ x ≤ 4}
• {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
• {0, 1, 2, 3, 4}

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TEKS.MATH.9-12.II.C

What are the x-intercepts of the function?

y=(x-4)(x-2)

• x=4 and x=2

• x=-4 and x = -2

• x = 4 and x= -2

• x = -4 and x = 2

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TEKS.MATH.9-12.II.C

Give the x-intercept
3x + 8y = 24

• (8, 0)
• (0, 8)
• (3, 0)
• (0, 3)

Tags

TEKS.MATH.9-12.II.C

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

Tags

TEKS.MATH.9-12.II.C

Solve by factoring.

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Tags

TEKS.MATH.9-12.II.C