The slope of a vertical line is undefined, D.
If you were to try to solve use something like the rise over run method, you would end up with a 0 in the denominator. Since dividing by 0 gives you an undefined result, the slope would be undefined.
Answer:
$5.65
Step-by-step explanation:
Divide 22.6 / 4.
5.65
Best of Luck!
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