9. (a) If 2 ⌈ ⌊ 3 4 5 x ⌉ ⌋ + ⌈ ⌊ 1 y 0 1 ⌉ ⌋ = ⌈ ⌊ 7 0 10 5 ⌉ ⌋ find the values of x and y. (Type in the answers separated by commas. Leave no spaces around the commas.)   10. (b) Solve the following inequation and graph the solution on the number line. −2 2 3 ≤ x + 1 3 < 3 1 3 ; x ∈ R   11. (c) Use a graph paper for this question. (Type in the answers separated by commas. Leave no spaces around the commas.) (i) The point P (2, −4) is reflected about the line x = 0 to get the image Q. Find the co-ordinates of Q.   12. (ii) Point Q is reflected about the line y = 0 to get the image R. Find the co-ordinates of R.   13. (iii) Name the figure PQR.   14. (iv) Find the area of figure PQR.