Hi there!
The correct answer is option B
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Since x = -4 is a vertical line(perpendicular to horizontal), so there is no y-intercept and the slope is undefined.
"A vertical
line has undefined slope because all points on the line have the same x-coordinate.
So, the slope is undefined and we also don't have the y - intercept.
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Credit to my graphing calculator, it looks like this ↓↓
Best of luck with your studies!
