Applications

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Lesson 7.8

• Applications

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Example Find the area between (1, 0), (2, 2),
(4, 3)
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Example Do (-2, -2), (1, 1), and (7, 5) lie on
the same line?
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Cramers Rule
A is the coefficient matrix Ax is the coefficient
matrix with the x column replaced by the constant
column
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Example Use Cramers Rule to solve.
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Example Use Cramers Rule to solve.