Paula Beardell Krieg 2015. IN. THIS. BOOK. M. = 1. SO. EVEN. THOUGH. IT'S. IMPLIED. ,. IT'S. NOT. WRITTEN. INTO. THE. EQ
6
y=x+3 Changes in b
5
y=x+4 Changes in b 2
y = mx + b
y = - mx + b
IN THIS BOOK M = 1 SO EVEN THOUGH IT’S IMPLIED, IT’S NOT WRITTEN INTO THE EQUATIONS
Paula Beardell Krieg 2015 10
y=x+5 -10
0
4
10
3 -10
9
y=x+0 10
y=x-1
8
y=x+1 11
y=x-2
7
y=x+2 12
y=x-3
15
y=-x+5 16
y=-x+4
14
y=x-5 17
y=-x+3
13
y=x-4 18
y=-x+2
21
y=-x-1 22
y=-x-2
20
y=-x+0 23
y=-x-3
19
y=-x+1 24
y=-x-4
b = [5, 4 ]
27
y=x+b 28
y=x+b b = [5, 4, 3 ]
b= 5
26
y=x+b 29
y=x+b b = [5, 4, 3, 2 ]
25
y=-x-5 30
y=x+b b = [5, 4, 3, 2, 1 ]
b = [5, 4, 3, 2, 1, 0, -1, -2 ]
33
y=x+b 34
y=x+b b = [5, 4, 3, 2, 1, 0, -1, -2, -3 ] b = [5, 4, 3, 2, 1, 0, -1 ]
32
y=x+b 35
y=x+b b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, ]
b = [5, 4, 3, 2, 1, 0 ]
31
y=x+b 36
y=x+b b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
y=-x+b
y=x+b 39
b = [5, 4, 3 ]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
40 y=-x+b
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
b = [5, 4, 3, 2 ]
y=x+b
y=-x+b
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
b = [5, 4, 3, 2, 1 ]
y=x+b
y=-x+b
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
b = [5, 4, 3, 2, 1, 0 ]
b = [5, 4 ]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
y=-x+b
y=x+b 38
y=x+b
37
41 42
b=5
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
y=-x+b
y=x+b
b = [5, 4, 3, 2, 1, 0, 1, -2, -3, -4, -5]
y=-x+b
48
y=x+b 43
y=-x+b
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
b = [5, 4, 3, 2, 1, 0, -1 ]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5 ]
y=-x+b
y=x+b
47
y=x+b 44
y=-x+b
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4 ]
b = [5, 4, 3, 2, 1, 0, -1, -2 ]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
y=-x+b
y=x+b
46
y=x+b 45 b = [5, 4, 3, 2, 1, 0, -1, -2, -3 ]
b = [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]
y=-x+b
y=x+b
In the equation of the line, y = mx + b, b is the value of y when x equals 0. b is referred to as the y-intercept. 49
I think of b as the quanity of y that you start with. For example, y = mx + 7 means that you can plot a point on the graph at (0, 7): whatever you are counting, you are starting with 7.
