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GenaCL600 [577]

3 years ago

9

How do you know that the slope of every horizontal line is 0? How do you know that the slope of every vertical line is undefined

?

1 answer:

DerKrebs [107]3 years ago

5 0

The slope of a horizontal line is always 0 because all its points have the same y-coordinate

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Write an equation of the line in slope intercept form that pass through the two

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$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ -2}}\quad ,&{{ 15}})\quad 
% (c,d)
&({{ 9}}\quad ,&{{ -18}})
\end{array}
\\\\\\
% slope = m
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Step-by-step explanation:

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