The table compares the price of an item to
the amount of sales tax. which is the
independent variable?
price $2.40 $3.00 $3.60 $4.20
sales tax $0.12 $0.15 $0.18 $0.21
a.
the price, because the price values
are greater than the tax values
b.
the sales tax, because it is never part
of the price
the price, because the price
determines the sales tax
d.
the sales tax, because it varies
according to the price