A PAIR OF LINEAR EQUATION IN TWO VARIABLES

The pairs of equations x+2y-5 = 0 and -4x-8y+20=0 have:

• Unique solution

• Exactly two solutions

• Infinitely many solutions

• No solution

If a pair of linear equations is consistent, then the lines are:

• Parallel

• Always coincident

• Always intersecting

• Intersecting or coincident

The pairs of equations 9x + 3y + 12 = 0 and 18x + 6y + 26 = 0 have

• Unique solution

• Exactly two solutions

• Infinitely many solutions

• No solution

If the lines 3x+2ky – 2 = 0 and 2x+5y+1 = 0 are parallel, then what is the value of k?

• 4/15

• 15/4

• 4/5

• 5/4

If one equation of a pair of dependent linear equations is -3x+5y-2=0. The second equation will be:

• -6x+10y-4=0

• 6x-10y-4=0

• 6x+10y-4=0

• -6x+10y+4=0

The solution of the equations x-y=2 and x+y=4 is:

• 3 and 1

• 4 and 3

• 5 and 1

• -1 and -3

A fraction becomes 1/3 when 1 is subtracted from the numerator and it becomes 1/4 when 8 is added to its denominator. The fraction obtained is:

• 3/12

• 4/12

• 5/12

• 7/12

The pair of equations 5x – 15y = 8 and 3x – 9y = 24/5 has

• one solution

• two solutions 

• infinitely many solutions

• no solution

The pair of equations x + 2y + 5 = 0 and –3x – 6y + 1 = 0 have

• a unique solution 

• exactly two solutions

• infinitely many solutions 

• no solution

The pair of equations x+2y+5=0 and -3x-6y+1=0 have

• A unique solution

• Exactly two solutions

• Infinitely many solutions

• No solution