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

Now draw a diagram of a circle with two chords, EF and GH, that intersect at point K.  If EF = 15, EK = 6, and HK = 3, what is GK?

• 3
• 6
• 9
• 18

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

y = 6x + 2
y = -6x + 2
These lines are...

• Parallel
• Perpendicular
• Neither

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

Are these two lines parallel, perpendicular or neither?
y = -1/3x - 5
y = 1/3x + 2

• Parallel
• Perpendicular
• Neither

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

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25
• Complementary; x=5
• Supplementary; x=25
• Supplementary; x=5

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

What is the equation of a circle with radius 2 and center (3, 4)?

• (x+3)² + (y+4)² = 2
• (x-3)² + (y-4)² = 2
• (x+3)² + (y+4)² = 4
• (x-3)² + (y-4)² = 4

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

Find the slope of the line that passes through
(10, 1) and (5, 2)

• 1/5
• -1/5
• 5
• -5

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

Find the slope of the line shown.

• 3/4

• -3/4

• 4/3

• -4/3

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

What is the center of the circle with this equation is (x+2)²+(y-4)²=41?

• (-2,41)

• (-2,4)

• (2,-4)

• (2,41)

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

What is the standard equation of a circle?

• (x-k)² + (y-h)² = r²

• (x+h)² + (y+k)² = r²

• (x-h)² + (y-k)² = r²

• (k-x)² + (h-y)² = r²

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

What is the radius of the circle with this equation x² + y² - 10x + 8y - 23 = 0?

• 4

• 2

• 8

• 23

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