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Unformatted text preview: of a line is "the change in y divided by the change in x." Since x never changes, the formula for finding the slope results in a division by zero. All lines with an undefined slope are vertical lines. Week 6 concept check After putting the equations of two lines into the y = mx + b equation, the m represents the slopes of the lines. To determine if two lines are perpendicular, multiply their m values, or slopes, together and look at the product. If the product is anything else but -1, the lines are not perpendicular. Week 8 concept check The graph of the interval [-4,10] is a horizontal line with its left endpoint at -4 and its right endpoint at 10. The "[" indicates that -4 is included in the interval; we represent this by drawing a heavy dot at the left endpoint -4. The "]" indicates that 10 is included in the interval; we represent this by drawing a heavy dot at the right endpoint 10....
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This note was uploaded on 04/09/2010 for the course MATH Math116 taught by Professor Na during the Winter '10 term at Phoenix School of Law.
- Winter '10