1
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following for the next two (02) items that follow :

A quadrilateral is formed by the lines x = 0, y = 0, x + y = 1 and 6x + y = 3. 

What is the equation of diagonal through origin ? 
A
3x + y = 0 
B
2x + 3y = 0 
C
3x - 2y = 0 
D
3x + 2y = 0
2
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following for the next two (02) items that follow :

A quadrilateral is formed by the lines x = 0, y = 0, x + y = 1 and 6x + y = 3. 

What is the equation of other diagonal ?  
A
x + 2y - 1 = 0
B
x - 2y - 1 = 0
C
2x + y + 1 = 0
D
2x + y - 1 = 0
3
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
If two lines of regression are x + 4y + 1 = 0 and 4x + 9y + 7 = 0, then what is the value of x when y = -3 ? 
A
-13
B
-5
C
5
D
7
4
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
A bivariate data set contains only two points (-1, 1) and (3, 2). What will be the line of regression of y on x ?
A
x - 4y + 5 = 0 
B
3x + 2y - 1 = 0
C
x + 4y + 1 = 0
D
5x - 4y + 1 = 0
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