Quiz about What I Know (Pre-Test)

Question 1

1. It is the intersection of a plane and a double-napped cone.

Accepted Answer

b. conic section

Answer

a. locus

Answer

c. circle

Answer

d. radius

Question 2

2. A collection of points satisfying a geometric property can also be referred to as a ______ of points.

Accepted Answer

a. locus

Answer

b. conic section

Answer

c. circle

Answer

d. radius

Question 3

3. A ____________ is the set of all points (x, y) in a plane that are equidistant from a fixed point, called the center.

Accepted Answer

c. circle

Answer

a. locus

Answer

b. conic section

Answer

d. radius

Question 4

4. A/n ____________ is the set of all points in the plane that are equidistant from a fixed point F(called the focus) and a fixed line l (called the directrix).

Accepted Answer

c. parabola

Answer

a. circle

Answer

b. ellipse

Answer

d. hyperbola

Question 5

5. A/n ___________ is the set of all points in the plane the sum of whose distances from two fixed points F₁ and F₂ is a constant.

Accepted Answer

b. ellipse

Answer

a. circle

Answer

c. parabola

Answer

d. hyperbola

Question 6

6. A/n ____________ is the set of all points in the plane, the difference of whose distances from two fixed points F₁ and F₂is a constant.

Accepted Answer

d. hyperbola

Answer

a. circle

Answer

b. ellipse

Answer

c. parabola

Question 7

7. 6x²+12x+6y²-8y=100 is an example of a

Accepted Answer

a. Circle

Answer

b. parabola

Answer

c. ellipse

Answer

d. hyperbola

Question 8

8. 4x²+12x+y²-8y=64 is an example of

Accepted Answer

c. ellipse

Answer

a. Circle

Answer

b. parabola

Answer

d. hyperbola

Question 9

9. 6y= 3x²-15 is an example of

Accepted Answer

b. parabola

Answer

a. Circle

Answer

c. ellipse

Answer

d. hyperbola

Question 10

10. 2x²+87x-25=y²+4y is an example of

Accepted Answer

d. hyperbola

Answer

a. Circle

Answer

b. parabola

Answer

c. ellipse

Question 11

11. 6x²-15x=3y²+4y+13 is an example of

Accepted Answer

d. hyperbola

Answer

a. Circle

Answer

b. parabola

Answer

c. ellipse

Question 12

12. A hyperbola is the only conic that has

Accepted Answer

a. asymptotes

Answer

b. focus

Answer

c. vertex

Answer

d. a minor axis

Question 13

33. An arch 20 meters high has the form of parabola with vertical axis. The length of horizontal beam placed across the arch 9 meters from the top is 60 meters. Find the width of the arch at the bottom.

Accepted Answer

c. 89.44 meters

Answer

a. 44.72 meters

Answer

b. 45.72 meters

Answer

d. 90.44 meters

Question 14

34. A spotlight in a form of a paraboloid 9 inches deep has its focus 3 inches from the vertex. Determine the radius of the opening of the spotlight.

Accepted Answer

b. 10.39 inches

Answer

a. 9.39 inches

Answer

c. 11. 39 inches

Answer

d. 12.39 inches

Question 15

35. A bridge is supported on an elliptical arch of height of 7 meters and width at the base of 40 meters. A horizontal roadway is 2 meters above the center of the arch. How far is it above the arch at 8 meters from the center?

Accepted Answer

c. 2.58 meters

Answer

a. 0.58 meters

Answer

b. 1.58 meters

Answer

d. 3.58 meters

Question 16

38. What kind of sequence is 5, 7, 9, 11, 13?

Accepted Answer

A. Arithmetic

Answer

B. Harmonic

Answer

C. Geometric

Answer

D. Fibonacci

Question 17

39. Find the 7th term of the sequence 1, 2, 6, 24, ...

Accepted Answer

C. 5, 040

Answer

A. 9,000

Answer

B. 720

Answer

D. 120

Question 18

40. What kind of sequence is 1, 5, 25, 125, 625?

Accepted Answer

C. Geometric

Answer

A. Arithmetic

Answer

B. Harmonic

Answer

D. Fibonacci

Question 19

43. What kind of sequence is 1, 1, 2, 3, 5, 8, 13, 21, ...?

Accepted Answer

D. Fibonacci

Answer

A. Arithmetic

Answer

B. Harmonic

Answer

C. Geometric

Question 20

45. Find the sum of the arithmetic series: 8, 12, 16, 20, 24, 28, 32, 36

Accepted Answer

C.176

Answer

A. 167

Answer

B. 177

Answer

D.168

Question 21

46. If 2x + 3x + 4x + 5x + ... + 41x = 1,720, what is x?

Accepted Answer

B. 2

Answer

A. 4

Answer

C. 3

Answer

D. 1

Question 22

47. How many boxes of milk are needed in Gaisano grocery store display

if they want to set up a stack of 15 boxes at the base of the triangle and

one box at the top?

Accepted Answer

C. 120 boxes

Answer

A. 180 boxes

Answer

B. 30 boxes

Answer

D. 15 boxes

Question 23

56.Use summation notation to write the series 49 + 54 + 59 + ... for 14 terms.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 24

57. Use summation notation to write the series 2 + 4 + 6 + 8 + ... for 10 terms.

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 25

58. Use summation notation to write the series 6.6 + 15.4 + 24.2 + ... for 5 terms.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

What I Know (Pre-Test)

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