Question

If 1,-1) lies on the graph of 2x+y=k, find k​

Answer 1

Answer:

2(1) +(-1) = k

2-1 =k

1= k

Answer 2

Step-by-step explanation:

2x + y = k

putting the value of x = 1 and y = (-1)

2× 1 + (-1) = k

2 - 1 = k

1 = k

the value of k is 1