Question

Solve this some by subsitution method
x-2y=6 ;3x-6=0

Answer 1

Given, x – 2y = 6……. (i) 3x – 6y = 0……. (ii) For equation (i), ⇒ y = (x–6)2(x–6)2 When x = 2, we have y = (2–6)2(2–6)2 = -2 When x = 0, we have y = (0–6)2(0–6)2 = -3 Thus we have the following table giving points on the line x – 2y = 6 x 2 0 y -2 -3 For equation (ii), We solve for y: ⇒ y = x2x2 So, when x = 0 y = 0202 = 0 And, when x = 2 ⇒ y = 2222 = 1 Thus we have the following table giving points on the line 3x – 6y = 0 x 0 2 y 0 1 Graph of the equations (i) and (ii) is as below: Clearly the two lines are parallel to each other. So, the two lines do not intersect.

Answer 2

ᴀɴꜱᴡᴇʀ :- ʀᴀᴛɪᴏɴᴀʟ ɴᴜᴍʙᴇʀ

ᴛʜᴇ ꜰᴏʀᴍ ᴩ/q ᴡʜᴇʀᴇ ᴩ ᴀɴᴅ q ᴀʀᴇ ɪɴᴛᴇɢᴇʀꜱ ᴀɴᴅ q ɪꜱ ɴᴏᴛ ᴇqᴜᴀʟ ᴛᴏ 0 . ɪꜱ ᴋɴᴏᴡ ᴀꜱ ʀᴀᴛɪᴏɴᴀʟ ɴᴜᴍʙᴇʀ .