How do you graph the equation y = -2x - 1 ?
Slope-intercept form is y = mx + b
m is the slope
b is the y-intercept
rise vertical change
------ = Slope = ----------------------------
run horizontal change
For y = -2x - 1
- put a point at -1 on the y-axis
- from there, since the slope is -2/1, move down 2 and to the right 1 and put another point
- then, draw a line through the two points
m is the slope
b is the y-intercept
rise vertical change
------ = Slope = ----------------------------
run horizontal change
For y = -2x - 1
- put a point at -1 on the y-axis
- from there, since the slope is -2/1, move down 2 and to the right 1 and put another point
- then, draw a line through the two points
