Question

weather(-1,-9) is solution of x-y+9=0​

Answer 1

Step-by-step explanation:

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 ..

Answer 2

so please refer the attachment for answer...

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