Question

If the point (2,2) lies on the line 4x+5y = k, then find the value of k.

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Answer 1

If the point (2,2) lies on the given linear equation, then it must satisfy the equation.
Putting the value of x and y in the equation we get:
$\Rightarrow 4\left(2\right)+5\left(2\right)=k$
$\Rightarrow k=18$
Thus, the value of k is 18.