The value of k for the given player = 400 option (D).
Linear equation refers to a equation that has highest degree = 1 and can be expressed in the form 'ax + b'.
Given:
Now, for a player who:
The data can be represented by the linear equation:
=> k - 200 = 200
=> k = 200 + 200
=> k = 400
Thus, the player's value of k = 400 (option D), i.e., he/she had 400 points in the beginning.
To learn more about linear equations, refer to the link: https://brainly.com/question/2030026
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