Final answer:
To write the equation of a line in slope-intercept form, substitute the given values into the equation y = mx + b, where m represents the slope and b represents the y-intercept. The equation for a line with a slope of and a y-intercept of -3 is y = -3x - 3.
Step-by-step explanation:
To write the equation of a line in slope-intercept form, which is y = mx + b, where m represents the slope and b represents the y-intercept, you can substitute the given values into the equation. In this case, the slope is missing, but you've mentioned it as 'and'. So, the equation becomes y = -3x - 3.
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