PDF chapter test TRY NOW

1. Is it true to say that the pair of equations -x + 2y + 2 = 0 and \frac{1}{2}x - \frac{1}{4}y - 1 = 0 has a unique solution? Justify your answer.
 
Answer:
 
The pair of equations has a unique solution.
 
2. Do the equations 4x + 3y - 1 = 5 and 12x + 9y = 15 represent a pair of coincident lines? Justify your answer.
 
Answer:
 
The pair of equations 4x + 3y - 1 = 5 and 12x + 9y = 15 represent coincident lines.