Concept explainers
a.
To prove: Use slopes to show that
a.
Explanation of Solution
Given information: Suppose two non-vertical
Formula used: Slope
Proof:
two non-vertical vectors
Slope of
Slope of
Slope of
Slope of
two non-vertical vectors
Then,
b.
To prove: Use slopes to show that
b.
Explanation of Solution
Given information: Suppose two non-vertical vectors
Formula used: Slope
Proof:
two non-vertical vectors
Slope of
Slope of
Slope of
Slope of
two non-vertical vectors
Then,
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