Question

write four solution for the equation:-
${\pi x + y = 9}^{?} |$
​

Answer 1

Step-by-step explanation:

) 2x + y = 7 (ii) πx + y = 9 (iii) x = 4y

Sol: (i) 2x + y = 7

When x = 0, 2(0) + y = 7

⇒ 0 + y = 7

⇒ y =7

∴ Solution is (0, 7).

When x = 1, 2(1) + y = 7

⇒ y = 7 – 2

⇒ y = 5

∴ Solution is (1, 5).

When x = 2, 2(2) + y = 7

⇒ y = 7 – 4

⇒ y = 3

∴ Solution is (2, 3).

When x = 3, 2(3) + y = 7

⇒ y = 7 – 6

⇒ y = 1

∴ Solution is (3, 1).

(ii) πx + y = 9

When x = 0 π(0) + y = 9

⇒ y = 9 – 0

⇒ y = 9

∴ Solution is (0, 9).

When × = 1, π(1) + y = 9

⇒ y = 9 – π

∴ Solution is {1, (9 – π)}

When x = 2, π(2) + y = 9

⇒ y = 9 – 2π

∴ Solution is {2, (9 – 2π)}

When × = –1, π(–1) + y = 9

⇒ – π + y = 9

⇒ y = 9 + π

∴ Solution is {–1, (9 + π)}

(iii) x = 4y

When x = 0, 4y = 0

⇒ y = 0

∴ Solution is (0, 0).

When x = 1, 4y = 1

⇒ y = 0

∴ Solution is (0, 0)

When x = 4, 4y = 4

⇒