The slope of every horizontal line is 0 because that is based on the formula. If it's horizontal on the x axis for example, the point slope will be 0,0, also the horizontal line is the numerator, i think. And the undefined slope is vertical because it's the denominator.
Using the distance formula, when I plugged in the information, the answer I got was the square root of 85. (B)
Answer:
https://orion.math.iastate.edu/dept/links/formulas/form1.pdf
Step-by-step explanation:
The answer is 10
Explanation