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Slope and Angle Notation

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Slope and Angle Notation
Slope and Angle
Notation
Page 190
Slope
• Slope: Describes how steep (or flat) a line is
• Slope is a ratio:
change in y value
change in x value
or
y
x
Unknown Angles
• Named after Greek letters:
θ (Theta)
α (Alpha)
β (Beta)
Slope Angle
• The angle, in a right triangle, between
the hypotenuse and the horizontal leg
• Example: θ (Theta) is the slope angle
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