Question 518115
The line x=3 is a vertical line that goes through the x-axis at x=3.
You can tell it is vertical because regardless of the value of 'y', x=3.
The change in y / change in x will be undefined because you cannot divide by 0.
The only line where the slope is undefined is a vertical line.
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So a vertical line that goes through the point (-3,5) is x = -3.
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Done.