Final answer:
The slope of the line described by the equation y = -3x + 2 is -3, because it is the coefficient of the x term in the equation, which is in the slope-intercept form.
Step-by-step explanation:
The slope of the line given by the equation y = -3x + 2 can be determined by identifying the coefficient of the x term when the equation is in slope-intercept form, which is y = mx + b. Here, m represents the slope, and b represents the y-intercept. Since the equation y = -3x + 2 already is in slope-intercept form (with m = -3 and b = 2), we can conclude that the slope is -3.
Answering the student's question: The slope of the line y = -3x + 2 is a) -3.