Lecture notes 1

# Lecture notes 1 - Section 5.4 FINDING LINEAR EQUATIONS...

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FINDING LINEAR EQUATIONS Section 5.4 Q

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ope Slope ± Orientation of a line ± change in y divided by change in x ± (0, -5), (-2, 0) ± Commonly designated m
ope Slope ± Positive: rises to right ± Negative: falls to right ± No slope: horizontal ± Undefined: vertical ± No slope undefined

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ope Slope ± Orientation of a line ± Slope-Intercept Equation: b mx y + = ± Slope is m in the equation ± This equation has a slope of +2 5 2 = x y
ind equation from slope and point Find equation from slope and point x ± Slope = 2 (this is m) ± Point (4, 3) (x, y) right? b mx y + ± Put m, x and y in ± Find b b + = ) 4 ( 2 3 ± b= —5 ± quation of the line: Equation of the line: put in m and b 5 2 = x y

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alculator eck of Calculator check of Linear Equations from slope and point
alculator check Calculator check ± Upper left [y=] button à any “Plot#” dark: Unselect them p arrow ± Up arrow ± [Enter] key ± Arrow to right and repeat ow to g t a d epeat à Any equations: ± clear them with [clear] ± Down arrow and repeat

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Lecture notes 1 - Section 5.4 FINDING LINEAR EQUATIONS...

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