How do you find the slope that is perpendicular to the line # x = 4#?

Answer 1

I tried this:

You know that #x=4# represents a vertical line passing through point #x=4, y=0#:

we can think that the perpendicular, in the form #y=mx+c#, must be perfectly horizontal, i.e., have a slope:
#m=0#
giving a line of equation #y=c# where #c# will be a real number (for example #y=3#):

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Answer 2

The slope of a line perpendicular to the line x = 4 is undefined.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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