Standard Notation
2.45 x 106
2,450,000
the slope of a horizontal line
0
y = 3x + 6
m= ?
m=3
185,000
1.85 x 105
7y - 4 = 24
y = 4
5.6 x 10-3
.0056
slope of a vertical line
undefined
y= -6x -4
b= ?
b= -4
1,870,000
1.87 x 106
10+9x = 100
x = 10
7.13 x 10-1
.0713
(0,0) and ( 5, 10)
2
m= -4
b= 6
Write the equation
y= -4x +6
850
8.5 x 102
48 +6x = -12
x= -10
8.71 x 105
871,000
( 10, 10) and ( 5,5)
m=1
m= 1 and crosses at the origin
y=x
.00045
4.5 x 10-4
96 = 24 -9x
x = -8
6.64 x 10-4
.000664
(-8,4) and ( 6, 10)
m=3/7
crosses at (0,2 ) and (-2,0)
write the equation
y= x +2
.000099
9.9 x 10-5
x/ -3 +7 = 5
x = 6