Writing y = mx + b from graph

Slide 1: 

CLICK HERE for the answers to the “NOW YOU TRY” Questions By: Melissa Barnhart

Slide 2: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex2)

Slide 3: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Ex2) Identified points Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________

Slide 4: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Ex2) Identified points Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________

Slide 5: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 1 Or + 1 Ex2) Identified points Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ 1

Slide 6: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 1 Or + 1 Run is: 2 Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex2) Identified points 1 2

Slide 7: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 1 Or + 1 Run is: 2 Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex2) Identified points Identify The y- int 1 2 1

Slide 8: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 1 Or + 1 Run is: 2 Ex2) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex2) Identified points Identify The y- int 1 2 1 y = ½x + 1

Slide 9: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3)

Slide 10: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3) Identified points

Slide 11: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3) Identified points 3 4

Slide 12: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 3 Or + 3 Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3) Identified points 3

Slide 13: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 3 Or + 3 Run is: 4 Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3) Identified points 3 4

Slide 14: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 3 Or + 3 Run is: 4 Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3) Identified points Identify The y- int 3 4 2

Slide 15: 

Step 1 : Count your slope ( Clearly Identify 2 points on the graph . Then, starting at the point furthest to the left , count how many units you must rise and run to reach the 2 nd point) Step 2 : Clearly Identify the y- int Step 3 : Substitute slope for the m & the y- int for b in the equation y = mx + b Start at point furthest left. Rise is: Up 3 Or + 3 Run is: 4 Ex3) Write the equation of the line graphed below: m = ____ b = _____ EQUATION: ___________________________ Ex3) Identified points Identify The y- int 3 4 2 y = ¾x + 2