Number line ek straight line hoti hai jo numbers ko ek sequence me represent karti hai. Is line ke beech me zero hota hai aur right side pe positive numbers hote hain, jaise 1, 2, 3, 4… aur left side pe negative numbers hote hain, jaise -1, -2, -3, -4…
Ab baat aati hai blue dot ki – yeh number line pe kahan hai? Yeh depend karta hai ki blue dot kis number pe place kiya gaya hai. Agar blue dot zero pe hai, to iska matlab hai ki yeh number line ke bilkul beech me hai. Agar blue dot kisi positive number pe hai, to iska matlab hai ki yeh zero ke right side me hai. Aur agar blue dot kisi negative number pe hai, to iska matlab hai ki yeh zero ke left side me hai.
Agar blue dot kisi fraction ya decimal number pe ho, jaise 0.5, 1.75 ya -2.3, to yeh do integers ke beech me aayega. Jaise agar blue dot 0.5 pe hai, to yeh 0 aur 1 ke beech me hoga. Agar -2.3 pe hai, to yeh -2 aur -3 ke beech me hoga.
Kayi baar blue dot ek unknown value represent karta hai, jo kisi equation ya inequality ka solution hota hai. Jaise agar ek equation me x = 3 hai, to blue dot ko number line pe 3 pe place kiya jayega. Agar x > 2 diya ho, to blue dot 2 ke right side wale numbers pe ho sakta hai.
To conclusion yeh hai ki blue dot ki position number line pe uss value pe depend karti hai jo usko assign ki gayi hai. Yeh positive ho sakta hai, negative ho sakta hai ya decimal ya fraction bhi ho sakta hai. Number line ek simple aur useful tool hai jo mathematical concepts ko easily samajhne me madad karta hai!