Question

4

The ordered pair (6, 4) is a solution of the linear equation 2x + ky = 8. What is the value of k?
-8
B
-1
What is the Answer

Answer 1

k = -1

Explanation:

Plug the known values into the linear equation:

`2x + ky = 8\\2(6) + k(4) = 8\\12 + 4k = 8\\`

Subtract 12 from both sides to isolate 4k:

`12 + 4k - 12 = 8 - 12\\4k = -4\\`

Divide both sides by 4:

`(4k)/(4) = (-4)/(4)`

k = -1

Hope this helps!