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MTH301 Quiz # 1 Last date 22 may, 2015

Dear Students!

Quiz # 1 will be started from May 18, 2015 12:00 AM. You can attempt the quiz at any time before 11:59 PM on May 22, 2015. It will cover first 7 lectures.  
              
                                                    Start Date               End Date        Lectures Covered

Quiz-1

May 18, 2015 May 22, 2015

Lecture 1-7

 

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Replies to This Discussion

1..To determine a point on a real line how many axis are required (i.e. in 1 dimension)

1

2

3

2..To determine a point on a real line how many axis are required (i.e. in 1 dimension)

1

2

3

4..The number square root of 2 is

rational

irrational

5..For the following function to be one-to-one, x can not be what values? f(x) = {(2, 4), (3, 8), (4, 11), (5, x)}

13

4, 8, and 11

2, 3, and 4

2, 3, 4, and 5

6..Value of the function f(x, y, z ) = xy + z at the point ( 1, 1, 1) is

2

3

4

7..XY-Plane consist of all points where

z=0

x=0

y=0

8..A plane z = 3 is ........ to xy-plane.

parallel

perpendicular (doubt)

9..We need direction cosines to determine the position of a line in space.

true

false

 

Question # 1 of 10 ( Start time: 09:12:08 PM )  Total Marks: 1  
If there are two points P(m, n) and q( a, b) on a plane then the distance between them is calculated by  
Select correct option:  
 
 (m-n, a-b)
 sqrt[(m-n, a-b)]
 sqrt[(a-m)^2 + (b - n)^2]
 (a-m)^2 + (b - n)^2
 
Question # 2 of 10 ( Start time: 09:13:15 PM )  Total Marks: 1  
The number 3/11 is  
Select correct option:  
 
 rational
 irrational
 
Question # 3 of 10 ( Start time: 09:13:35 PM )  Total Marks: 1  
Value of the function f(x, y, z) = xyz at point ( 2, 2, 2) is  
Select correct option:  
 
 2
 6
 8
 16
 
Question # 4 of 10 ( Start time: 09:14:11 PM )  Total Marks: 1  
In rectangular coordinate system the point (-3, 2) is in  
Select correct option:  
 
 first quadrant
 second quadrant
 third quadrant
 fourth quadrant
 
Question # 5 of 10 ( Start time: 09:14:37 PM )  Total Marks: 1  
Which of the following function is not the function of one variable  
Select correct option:  
 
 y = f(x)
 y = f( x, y)
 z= g(n) + 2
 m = g(s) + constant
 
Question # 6 of 10 ( Start time: 09:15:09 PM )  Total Marks: 1  
The number 3/1 is  
Select correct option:  
 
 rational  
 irrational
 
Question # 7 of 10 ( Start time: 09:15:28 PM )  Total Marks: 1  
Intersection of two surfaces is a........ in three dimensional space  
Select correct option:  
 
 line  
 point
 curve
 plane
 

Question # 8 of 10 ( Start time: 09:16:25 PM )  Total Marks: 1  
YZ- Plane consists of all points where  
Select correct option:  
 
 yz=0
 yz=1
 x=0
 z=0
 
Question # 9 of 10 ( Start time: 09:17:34 PM )  Total Marks: 1  
To determine a point on a real line how many axis are required (i.e. in 1 dimension)  
Select correct option:  
 
 1
 2
 3
 none
 
Question # 10 of 10 ( Start time: 09:18:38 PM )  Total Marks: 1  
x-coordinate of vertex of parabola y = 3x^2 + 6x + 8 is  
Select correct option:  
 
 1
 -1
 3 not sure
 6

  1. Face of the parabola (y = ax^2+bx+c ) is opening upward when

 

  • a > 0
  • a < 0
  • b > 0
  • b < 0

 

  1. Value of the function f(x, y, z) = x^2+ y^2 + z^2 at the point (0,1, 0) is
  • 1
  • 0
  • 2
  • 3

 

  1. For the line joining two points P(1, 1, 1) and Q(2, 2, 2) direction cosines are…..(distance between the points are sqrt(3))

 

  1. (1/sqrt(3), 1/sqrt(3), 1/sqrt(3) )
  2. (2/sqrt(3), 2/sqrt(3), 2/sqrt(3) )
  3. (3/sqrt(3), 3/sqrt(3), 3/sqrt(3) )
  4. (-sqrt(3), -sqrt(3), -sqrt(3) )

 

  1. x-coordinate of vertex of parabola y = 3x^2+6x+8 is
  • 1
  • -1
  • 3
  • 6

 

  1. The number “Square root 3” is
  • Rational
  • Irrational

 

  1. The determine a point in a plane (in 2 dimension) how many axis are required
  • 1
  • 2
  • 3
  • None

 

  1. To determine a point on real line how many axis are required (i.e. in 1 dimension)
  • 1
  • 2
  • 3
  • None

 

  1. XY – Plane consist of all points where

 

  • xy = 0
  • xy = 1
  • z = 1
  • z = 0


If there are two points on P( 1, 0) and Q (0, 1) on the plane then the distance between them is
1, 0, 2, Sqr 2
A plane z = 3 is ........ to xy-plane
paralell
perpandicular
the number "pi" is
rational irrational
For the following function to be one-to-one, x can not be what values? f(x) = {(2, 4), (3, 8), (4, 11), (5, x)}
13,(4,8,11) (2, 3, 4)(2, 3, 4 ,5)
In rectangular coordinate system the point (-3, 2) is in
2nd
squarroot of 2 is 
rational irrational
XY-Plane consist of all points where
z=0
To determine a point on a real line how many axis are required (i.e. in 1 dimension)
2
value of the function f(x, y, z) = xz/y at the point ( y, y^3, y^3) is

To determine a point on a real line how many axis are required( i.e. in 1 dimension)

  1. 1
  2. 2
  3. 3
  4. None

In rectangular coordinate system the point (3, -4) is located in

  1. First quadrants
  1. Second quadrant
  1. Third quadrant
  1. Fourth quadrant

 

Value of the function f(x, y, z) = xyz at point (2, 2, 2) is

  1. 2
  1. 6
  1. 8
  2. 16

 

Value of the function f(x, y, z) = xz/y at the point (y, y^3, y^3) is

  1. y^3
  2. 1
  3. Y
  1. Xz/y

 

Value of the function f(x, y, z) = xy  + z at the point (1, 1, 1) is

  1. 2
  2. 3
  3. 1
  1. 4

 

YZ- Plane consists of all points where

  1. Yz=0
  2. Yz= 1
  3. X = 0
  4. Z = 0

 

We need direction cosines to dettermine the position of a line in space.

  1. True
  2. False

 

Value of the function f(x,y) = x^2.y at the point (x^3, x^2) is

  1. x^3x^2
  2. x^5
  3. x^2x^2
  4. x^8


To determine a point on a real line how many axis are required( i.e. in 1 dimension)

  1. 1
  2. 2
  3. 3
  4. None

In rectangular coordinate system the point (3, -4) is located in

  1. First quadrants
  1. Second quadrant
  1. Third quadrant
  1. Fourth quadrant

 

Value of the function f(x, y, z) = xyz at point (2, 2, 2) is

  1. 2
  1. 6
  1. 8
  2. 16

 

Value of the function f(x, y, z) = xz/y at the point (y, y^3, y^3) is

  1. y^3
  2. 1
  3. Y
  1. Xz/y

 

Value of the function f(x, y, z) = xy  + z at the point (1, 1, 1) is

  1. 2
  2. 3
  3. 1
  1. 4

 

YZ- Plane consists of all points where

  1. Yz=0
  2. Yz= 1
  3. X = 0
  4. Z = 0

 

We need direction cosines to dettermine the position of a line in space.

  1. True
  2. False

 

Value of the function f(x,y) = x^2.y at the point (x^3, x^2) is

  1. x^3x^2
  2. x^5
  3. x^2x^2
  4. x^8


Value of the function f(x,y) = x^2.y at the point (x^3, x^2) is:

the right answer is x^8

square root of 3 is an irrational number

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