Linear Equations
What does the "y" represent in the equation y=mx+b
Dependent Quantity and Dependent Variable
Y= 3/4x+2
Positive
What does the "m" represent in the equation y=mx+b?
Delta Y over Delta X
Constant rate of change
Y= -5/7x+12
Negative
What does the "x" represent in the equation y=mx+b?
Independent Quantity
Independent Variable
Y= 6-1x
Negative
What does ¨b¨ represent in the equation y=mx+b?
Can be a positive, negative, or zero
the y-value when x=0
where the graph of the equation intercepts the y-axis
Initial amount
Starting point
Y= 2x+4-5-9
Positive
I am the independent quantity:
What letter represents me in the equation y=mx+b?
x
Y= -1/2x+-2/4x+1
Negative