y=mx+b
Use graph 1 to find the rule in y=mx+b form.
y= .5x-2
Solve for "X".
x + y = 30
x = 30 - y
Combine like terms for the equation:
-5x-6+2x=9
x=-5
Use Equal Values Method to solve:
y=3x-4
y=-2x+6
x=2
Use graph 2 to find the rule in y=mx+b form.
3x
Solve for "X".
2x - 4 = 3x + 5
x = -9
Combine like terms for the equation:
3-15=6x-2x
x=-3
Use Equal Values Method to solve:
y=3x+5
y=x+19
x=7
Use graph 3 to find the rule in y=mx+b.
1.5x+1
Solve for "X".
7(x-2) = 3(x+4)
x = 6.5
Combine like terms for the equation:
4(x-5)=20
x=10
Use Equal Values Method to solve:
y=2x-3
y=-x+3
x=2
Use graph 4 to find the rule in y=mx+b form.
x-3
Solve for "X".
3(x - 8) - 5 = 9(x + 2) + 1
x = -8
Combine like terms for the equation:
7x-4x=21
x=7
Use Equal Values Method to solve:
y=-2x+22
y=3x-28
x=10
Use graph 5 to find the rule in y=mx+b form.
-x-1
Solve for "X".
2x + 14y = 7
x = 3.5 - 7y
or
7 - 14y / 2
Combine like terms for the equation:
19=5x+7-3x
x=6
Use Equal Values Method to solve:
y=x+2
y=-2x+5
x=1