Our Calculators love Y equations

1
Our Calculators love Y equations Sooooooooo
ooo, If an equation is not in Y form, we
must change it using the
rules.
2
Which of these equations below are in Y
Form
A. 2Y 6 3X
NO
NO
B. 2X 3Y 6
NO
C. 6 3Y 2X
YES
D. Y 6X - 2
YES
E. 3 2X Y
3
The Goal is to isolate Y on one side of the
equation Example 3X
4Y 8
RULE 1 Put an open parenthesis in front of
the constant (8)
3X 4Y (8

RULE 2 Place a minus - sign after the
constant (8)
3X 4Y (8 -
4
Example 3X 4Y 8
RULE 3 Bring the X term over and put in
behind the minus sign and close
the parenthesis
4Y (8 - 3X)
RULE 4 Take the coefficient of the Y term
along with its sign and put it
under the parenthesis quantity.
Y (8 3X) 4
5
Voila Y (8 3X) 4 The equation
is now calculator friendly
6
Lets do a few problems together
5X 2Y 16 5X 2Y (16 5X 2Y (16
2Y (16 5X) Y (16 5X)
2
7
Another one this time with a negative y
-6X 2Y 1 -6X 2Y (1 -6X 2Y (1
2Y (1 -6X) Y (1 -6X) or (1
6X) -2 -2
8
Another one this time with a X on the right
2Y 6X 1 2Y (6X 1) Y (6X 1)
2
9
One More.
3Y 2X 6 3Y 2X (6 3Y (6X - 2X) Y (6
2X) 3
10
Now its your turn.
6X 3Y 4 Y ( 4 6X ) 3
11
Now its your turn.
4X Y -8 Y (-8 4X ) -1
12
Now you do these
Y (-6 3X) 4

• 3X 4Y -6
• 6X 2Y 3
• X Y 4
• Y X 6
• -2X 3Y -5

Y (3 - 6X) -2
Y (4 - X) -1
Y (6 - X) 1
Y (5 - -2X) or (5 2X) -3
-3