5 1 Finding Slope Slope m the steepness

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5. 1 Finding Slope

5. 1 Finding Slope

Slope (m) • the steepness of a line • the rate of change the

Slope (m) • the steepness of a line • the rate of change the ratio of change in the y-coordinates to the change in x-coordinates • the rise over the run • formula

Rate of Change Determine if each function is linear. Ex 1 Ex 2 +1

Rate of Change Determine if each function is linear. Ex 1 Ex 2 +1 +1 +1 x y 1 6 2 12 +6 3 18 +6 4 24 +6 +8 +8 +8 x y -10 5 -2 1 6 -4 14 -10 -4 -5 -6

Four Types of Slope • positive • negative • zero • undefined

Four Types of Slope • positive • negative • zero • undefined

Rise over Run Find the slope of each line. Ex 3 Ex 4 +2

Rise over Run Find the slope of each line. Ex 3 Ex 4 +2 +4

Rise over Run Find the slope of each line. Ex 5 Ex 6 -2

Rise over Run Find the slope of each line. Ex 5 Ex 6 -2 +3

Undefined vs. Zero Slope • H orizontal Zer O Y = a number •

Undefined vs. Zero Slope • H orizontal Zer O Y = a number • V ertical U ndefined X = a number

Find the slope of each pair of points Ex 7 (6, 4) (3, –

Find the slope of each pair of points Ex 7 (6, 4) (3, – 1) Ex 8 (0, – 3) (6, 0) Ex 9 (2, – 3) (2, 3) Ex 10 (1, – 4) (– 2, – 4)

Find the coordinate, given the slope Ex 11 (r, 6) (10, – 3);

Find the coordinate, given the slope Ex 11 (r, 6) (10, – 3);

Find the coordinate, given the slope Ex 12 (6, 3) (r, 2);

Find the coordinate, given the slope Ex 12 (6, 3) (r, 2);

Without graphing, tell whether the slope of the line that models each situation is

Without graphing, tell whether the slope of the line that models each situation is positive, negative, zero, or undefined. Then find the slope • Ex 13 – The late fee is $2 regardless of the number of days the movie is late • Ex 14 – The contract states that every day past the agreed upon completion date the project is not finished, the price is reduced by $25.

WB Pg 139 evens

WB Pg 139 evens