Please answer these questions, economics? (10 pts)?

[latinachica08]

1. According to the law of demand,
a)demand curves will have positive slope.
b)there is a direct relationship between price and quantity demanded for any good or service.
c)a change in the price of a good will cause its demand curve to shift outward.
d) there is an inverse relationship between price and quantity demanded for any good or service.

2.According to the law of demand,
a) demand curves slope downward.
b)as consumer income increases, so does demand.
c) supply curves have positive slope
d) demand curves have positive slope.

Please answer with what u think is the best correct answer.
3. As the price of cameras increases,
a) the demand for film will increase.
b) the supply of cameras will increase.
c) the demand for film will decrease.
d) the demand for cameras will increase.

 

[J. S.]

1 (d)
2 (a)
3 (c) because cameras and film are complementary goods

 

[challenger]

1. d
2. a
3. c

Be sure to understand why these answers are correct.