The equation of a parallel line is not enough information to find the equation of a new line, as it only provides the slope but lacks the y-intercept needed to define a unique line equation. ;
Knowing the equation of a parallel line is not enough information to find the equation of a specific line because it only provides the slope, not the unique y-intercept or any specific point on the line. ;
To find the equation of a line, sufficient information includes options A, B, and D, while option C (the equation of a parallel line) does not provide enough specific information since it only gives the slope and not a unique y-intercept. Therefore, the correct answer is C. The equation of a parallel line.
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