Final answer:
The point-slope form of the equation of a line is y - y1 = m(x - x1), with m as the slope. Option B) describes a straight line with positive slope.
Step-by-step explanation:
The point-slope form of the equation of a line is given by y - y1 = m(x - x1), where m is the slope of the line and (x1, y1) is a point on the line.
Based on the given options, the equation of the line described in option A) is not suitable as an MCQ, so it does not provide enough information to determine the equation. Option B) describes a straight line with positive slope, and option C) describes a horizontal line at some negative value. Finally, option D) describes a horizontal line at some positive value.
Therefore, the correct answer is option B) It is a straight line with positive slope.