ANSWERS/HINTS 333
File Name : C:\Computer Station\Maths-IX\Chapter\Answers (16–12–2005) PM65
- 7 x – y = 0 and x + y = 16; infintely many [Through a
point infinitely many lines can be drawn]
3.
5
3 4.^5 x – y + 3 = 0- For Fig. 4.6, x + y = 0 and for Fig. 4.7, y = –x + 2.
- Supposing x is the distance and y is the work done.
Therefore according to the problem the equation will
be y = 5x.
(i) 10 units (ii) 0 unit - x + y = 100
(100, 0)
x(^) + (^) y (^) =
(^100)
X ́ O X
Y ́
Y
(1, 5)
(, 5)–1 –
yx
=5
(0, 3)
5 – + 3 = 0xy