Unit 4 Section 8 Slope.notebook February 02, 2016 Feb 6­9:19 AM Feb 6­9:19 AM 1 Unit 4 Section 8 Slope.notebook February 02, 2016 Graphing Linear Functions with SLOPE Unit 4 Jan 28­1:45 PM Vocabulary Slope: The ratio of the change in the y to the change in the x. The Slope Formula: Remember: Slope is fun! It‛s __________ over ____________! Jan 28­1:46 PM 2 Unit 4 Section 8 Slope.notebook February 02, 2016 Find the slope of the line. Positive Slope Negative Slope Zero Slope Undefined Slope Special Slopes: The slope of a horizontal line is always = ___________________ The slope of a vertical line is always = _____________________ Aug 7­10:31 AM 1.) Find the slope of a hill that rises 25 feet for every horizontal change of 80 feet. You can also find the slope by using coordinates of any two points on a line. Use this formula. y2 ­ y1 m = x ­ x 2 1 2.) A(1, -3), B(5, 4) 3.) X(4, -3), Y(5, -2) 4.) M(2, 6), N(-1, 6) Aug 7­10:33 AM 3 Unit 4 Section 8 Slope.notebook February 02, 2016 7.) The bottom of a ladder is placed 4 feet away from a house and it reaches a height of 16 feet on the side of the house. What is the slope of the ladder? 8.) In a stairway, the slope of the handrail is the ratio of the riser to the tread. If the tread is 12 inches long and the riser is 8 inches long, find the slope. Aug 7­10:34 AM Through the given point, graph a line with the given slope. a. (1, 2); slope = ‐3/2 b. (3, 4); slope = 0 c. (‐1, 2); slope = 1/2 c. (2, 3); slope = undefined Aug 7­10:35 AM 4 Unit 4 Section 8 Slope.notebook February 02, 2016 Challenge Find the value of the missing coordinate using the given slope. 1.) (x, 0), (3, 4) m = 2 2.) (­1, y), (1, ­1) m = 3 Find the slope of a line that contains the given points. 3.) (6t, t), (6r, r) 4.) (n + 3, n), (d + 3, d) Feb 19­7:04 PM Homework: Homework Packet: page 21, 22 (even numbers only) and page 23 (#'s 13­16) Jan 24­9:32 PM 5 Unit 4 Section 8 Slope.notebook February 02, 2016 Jan 31­1:18 PM 6