Question

Plot the following points in the coordinate plane and join them. What is your conclusion
about the resulting figure?
(i) (–5,3) (–1,3) (0,3) (5,3) (ii) (0,–4) (0,–2) (0,4) (0,5)

Answer 1

I plotted the following points as we know, rule for plotting points :-
in first quadrant : x => positive , y => positive
2nd quadrant : x => negative , y => positive
3rd quadrant : x => negative , y => negative
4th quadrant : x => positive , y => negative.
after using this we got (-5,3), (-1,3), (0,3) and (5,3) lies on straight line because ordinate of all points are same . e.g., 3 . due to this straight line is horizontal and 3 unit above from the origin.

similarly, we got (0,-4),(0,-2), (0,4) and (0,5) lies on straight line. you can see absissa of all points are same and that is zero. due to this straight line is not other than y-axis. in 2nd figure , it is clearly shown .

hence, we conclude that both (1) and (ii) are placed on straight line as shown in figure.