Please provide a full explanation since I'm struggling to understand this. The answer range is from 0 to 15.

(1 pt) Consider the system aa:+by+cz err+fy+gz II we. Its augmented matrix is abc d efg h (3) Find all possible reduced row-echelon forms for a 2 X 4 matrix. Use it to represent any real number. (b) Classify the RREF of (a) according to the type of solution : 1R3, plane, line, point or empty. Select Answer v 1. How many give a line as an intersection? Select Answer v 2. How many possible RREFs in total? Select Answer v 3. How many give an empty intersection? Select Answer v 4. How many give a point as an intersection? Select Answer v 5. How many give a plane as an intersection? Select Answer v 6. How many give you all of R3