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AVprozaik [17]
3 years ago
5

Plato math help please

Mathematics
1 answer:
fomenos3 years ago
6 0

Answer: option (C)

Step-by-step explanation: The slope of a linear function is undetermined when the line is parallel respect to the y-axis. In the current problem there is no way to observe such geometrical issue, but if we consider how to derive the slope using the following expression; m=\frac{\Delta y}{\Delta x}= \frac{y_{2}-y_{1}}{x_2-x_{1}}.

With the previous equation, we have

a) for P_{1}(-1,1), P_{2}(1,-1)   m=\frac{\Delta y}{\Delta x}= \frac{-1-1}{1-(1)}=\frac{-2}{2}=1\\, therefore the slope is defined

b) for P_{1}(-2,2), P_{2}(2,2)   m=\frac{\Delta y}{\Delta x}= \frac{2-2}{2-(2)}=\frac{0}{4}=0\\, therefore the slope is defined

c) for P_{1}(-3,3), P_{2}(-3,3)   m=\frac{\Delta y}{\Delta x}= \frac{3-(-3)}{-3-(-3)}=\frac{6}{0}=undetermined\\

d) for P_{1}(-4,4), P_{2}(4,4)   m=\frac{\Delta y}{\Delta x}= \frac{4-(-4)}{4-(-4)}=\frac{8}{8}=1\\

In this case, the option (C) shows that is not possible to divide over zero. Given such issue, the slope is undetermined and therefore it is a vertical line parallel to y-axis.

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