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

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• -4.9 and -0.1

• -8.54 and 8.54

• -0.45 and 3.55

• -6.77 and 1.77

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

-7 + 10z > -27

• z < -2
• z > -34
• 2 > z
• z > -2

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

Solve for x and y
2x − 3y = −1
 y = x − 1

• (-2,-3)
• (0,-1)
• (3,4)
• (4,3)

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

How can I tell if the graph of an inequality will have a solid line?

• It has just an equal sign.
• The symbol is greater than.
• The symbol has "or equal to."
• You just guess.

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

Solve for x.

• 21
• 4
• 8
• 5

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

Solve for 0≤x≤2π

2sin²x - sinx = 0

• 0, π, 2π

• π/2, 3π/2

• π/6, 5π/6

• π/3, 2π/3

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

You need to save a minimum of $1200 to purchase your new laptop.  If you already have saved $400 and make 11 per hour, h, at your job, which inequality could be use to solve to determine how many hours you need to work to save enough money.

• 11h + 1200 ≥ 400
• 11h + 400 < 1200
• 11h + 400 > 1200
• 11h + 400 < 1200

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

Find x.

• 2

• 18

• 2√9

• 9√2

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

Solve by factoring:

x² +14x +48 = 0

• x = -8, 6

• x = 8, 6

• x = -4, -8

• x = -8, -6

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

Solve

-124 = 4 (1+ 8k)

• -11

• 10

• -4

• -2

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