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4.6 Slope Intercept Form 11242014.notebook
1
November 25, 2014
Nov 197:25 AM
What we have used to graph lines...
Step 1: Plot Y intercept ordered pair
Step 2: change in ychange in x
Step 3: find another point from y
intercept and draw a line through the two points
m = 2 yint = 3
Graph the line:
If a line has a slope m and the yintercept is b, then the line is described by the equation y = mx + b
x y2x y = 4
Remember... slope =
m = slope
riserun
Nov 2511:25 AM
Nov 2511:31 AM Nov 2511:28 AM
Nov 197:40 AM
Write the equation that desrcibes each line in slopeintercept form.
Slope= 31
yintercept= 6
1) 2) m = 0
yint = 5
3) 4) m = 4(2, 5) is on the line
Nov 2410:28 AM
Write the equation of the line in slopeintercept form...
slope= 9, yint= 1/2
Slope=7, yint= 0
Slope = 8, (3,1) is on the line
Slope = 1 (6,4) is on the line 2
slope = 0 (6,8) is on the line
4.6 Slope Intercept Form 11242014.notebook
2
November 25, 2014
Nov 197:45 AM
Using Slopeintercept form to graph
y= 4x 3 Step 2: plot yint
Step 3: count out slope
Step 4: Connect points with a line
y = x + 223
3x + 2y = 8
Step 1: Solve for y
Nov 2110:07 AM