1. LEQ: What is the process used to graph direct variation equations?

2.  Symbolized as m  Measures the steepness  Rate of change of y with respect to x determined by two points on the line  Rise/Run  Slope formula: The slope of the line through two points (x 1, y 1 ) and (x 2, y 2 ) equals

3.  Find the slope between (9,12) and (15, 21)  Let (9,12) = (x 1, y 1 ) and (15, 21) = (x 2, y 2 )

4.  Find the slope between (-3, 8) and (-5, -7)  Let (-3, 8) = (x 1, y 1 ) and (-5, -7) = (x 2, y 2 )

5.  Passes through the origin  Domain is the set of real numbers  When k ≠ 0, the range is the set of real numbers  Constant slope, k  When k>0, graph slants up from left to right  When k<0, graph slants down from left to right  For example:  The slope of y = 2x is 2  The slope of y = (-3/4)x is -3/4

6.  Graph y = 4x  Passes through the origin  m = 4 Rise 4 (up) Run 1 (right)  Draw line

7.  Graph y = (-2/5)x  Passes through the origin  m = -2/5 Rise -2 (down) Run 5 (right)  Draw line

8.  LM 2-4A #4, 8

9.  Pgs. 91-93 #1-14, 16-24