Question

write four solutions of the equation πx+2y=7

Answer 1

Answer:

$\tt{\underline{Solution}}$

πx + y = 9

⇒ y = 9 - πx 

→ Put x = 0,

y = 9 - π×0 ⇒ y = 9

(0, 9) is the solution.

→ Now, put x = 1

y = 9 - π×1 ⇒ y = 9-π

(1, 9-π) is the solution. 

→ Now, put x = 2

y = 9 - π×2 ⇒ y = 9-2π

(2, 9-2π) is the solution. 

→ Now, put x = -1

y = 9 - π× -1 ⇒ y = 9+π

(-1, 9+π) is the solution.

The four solutions of the equation πx + y = 9 are (0, 9), (1, 9-π), (2, 9-2π) and (-1, 9+π).

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Answer 2

Answer:

first solution

put x=0

so p(0)= π×0+2y=7

so,

0+2y=7

y=7-2

y=5

second solution

put x=1

so p(1)=π×1+2y=7

so,

π+2y=7

2y=7-π

y=7-π/2

third solution

put x=2

so p(2)=π×2+2y=7

2y=7-2π

y=7-2π/2

fourth solution

put x =3

so p(3)=π×3+2y=7

2y=7-3π

y=7-3π/3