Final answer:
The equation 2y + 4 = 0, when rewritten in the slope-intercept form, indicates that the slope (m) is 0 and the y-intercept (b) is -2. The correct answer is not provided in the student's options as they contain an error.
Step-by-step explanation:
The linear equation provided is 2y + 4 = 0. To find the slope and y-intercept, we need to rewrite this equation in the slope-intercept form of y = mx + b, where m represents the slope and b represents the y-intercept. First, let's isolate y by subtracting 4 from both sides and then dividing by 2:
2y = -4
y = -2
In this form, it's clear that the slope m is 0 (since there is no x-term) and the y-intercept b is -2. Therefore, the correct answer is the slope is 0 and the y-intercept is -2, which is not listed among the options provided by the student. There seems to be an error in the multiple choice options given.