Explanation:
The equation y = -15 + 12 is not in slope-intercept form. In slope-intercept form, the equation should be in the form y = mx + b, where m represents the slope and b represents the y-intercept.
To convert the given equation to slope-intercept form, we need to simplify it further.
y = -15 + 12 simplifies to y = -3.
Therefore, the slope-intercept form of the equation y = -15 + 12 is y = -3.