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

When do you use the plus or minus symbol?
±

• After taking the square root of both sides
• After adding the square to both sides
• After taking half of b
• After setting the equation equal to zero

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

One leg of a right triangle is seven more than the other leg. The hypotenuse is eight more than the shorter leg. Find the lengths of the longest side.

• 5 ft
• 3 ft
• 12 ft
• 13 ft

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

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

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

Which of these is equivalent to 2cos²x − 3cosx = 0 ?

• -cos²x = 0

• cosx(2cosx + 3) = 0

• cosx(2cosx − 3) = 0

• cos x = ⅔

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

Solve.   n - (-2) = -14

• -16
• 16
• 12
• -12

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

Find the value of x.

• 100°

• 120°

• 125°

• 130°

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

If 3x = 54, then which of the following must be true?

• 1<x<2

• 2<x<3

• 3<x<4

• 4<x

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

Solve

• {x l x < -1}

• {x l x > 3}

• {x l x < -4}

• {x l x > -4}

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

 $n^2-2n-3=0$  Solve the equation by completing the square and finding the roots.

• 3 and -1

• 4 and -4

• 5 and -3

• 8 and -7

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

 $y=\frac{-1}{3}x+2\ \ and\ y=\frac{1}{3}x-1$  

• perpendicular

• parallel

• neither

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