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

Determine the value of the discriminant and name the nature of the solution for the following:
x² + 2x - 63
Remember:  b² - 4ac

• 256 - 2 reals - Rational
• √(-256 - 2 imaginary solutions
• √(137) - 2 reals - Irrational
• 123 - 2 reals - Rational

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

Solve by using the quadratic formula:
15x²+22x=-8

• -2/3, 4/5
• 2/3, -4/5
• 2/3, 4/5
• -2/3, -4/5

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

Solve using Zero-Product Property.
(x+4)(x-3) = 0

• x = 4 and x = -3
• x = 2 and x = 1
• x = -4 and x = 3
• x = -2 and x = 1

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

-13t > 26

• t > -2
• t > 2
• t < 2
• t < -2

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

If X = Y, then X + 5 = Y + 5

• Addition POE
• Subtraction POE
• Reflexive POE
• Transitive POE

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

When graphing b< 6 would you use an open or closed circle?

• Open
• closed

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

Solve on the domain [0,2π)
1/4sin x + 1= 0

• 0
• 7π/4
• 5π/4
• No solution

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

Solve the equation using the zero product property.
(x- 9)(x + 3) = 0

• x = 3 or x = 9
• x = 3 or x = -9
• x + -3 or x = 9
• x = -3 or x = -9

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

Was the inverse function found correctly?

• no,
• yes

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

Is  ½ a possible solution for k > -6 ?

• Yes
• No

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