Final answer:
The y-intercept of the equation y = 5x + 2 is the constant term 2, which is where the line crosses the y-axis when x is 0, making the correct answer option (a) 2.
Step-by-step explanation:
The equation of the line given is y = 5x + 2. According to the equation format y = mx + b, the y-intercept is represented by 'b', which is the constant term in the equation. Therefore, the y-intercept for this line is 2, corresponding to the point on the y-axis where the line will cross when x equals 0. So, the correct answer to the question 'If the equation of the line is y = 5x + 2, what is the y-intercept?' is option (a) 2.