Question

if (2,2) lies on 4x +5y = k , find the value of k​

Answer 1

Answer: k = 18

Step-by-step explanation:

2-x

2-y

substituting it into 4x+5y=k

8+10+18

hence k= 18

Answer 2

Solution:

Given (2,2) lies on 4x+5y=k,

substitute x = 2 , y = 2 in the equation, we get

=> 4×2+5×2 = k

=> 8 + 10 = k

=> k = 18

Therefore,.

k = 18

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