MATH QUIZ - CHAPTER 3

If a pair of linear equations in two variables is consistent, then the lines represented by the two equations are

• Intersecting

• Parallel

• Always Coincident

• Intersecting or Coincident

The pair of equations y=0 and y= -7 have 

• one solution

• two solutions

• infinitely many solutions

• no solution

The pair of linear equations 3x+5y=3 and 6x+ky=8 do not have any solution if

• k=5

• k=10

• $k\ne10$

• $k\ne5$

If   $am\ne bl$  then, the pair of equations ax+by=c and lx+my=n 

• has a unique solution

• has no solution

• has infinitely many solutions

• may or may not have  a solution

The pair of equations x=a and y=b graphically represent lines which are

• parallel

• intersecting at (a,b)

• coincident

• intersecting at (b,a)