Question

The price of apples went from $1.99 per lb to $3.19 per lb in four years. Find the rate of change of the price of apples.

A) $0.30 per lb per year
Eliminate
B) $0.50 per lb per year
C) $0.80 per lb per year
D) $1.10 per lb per year

Answer 1

the answer is A. add $0.30 to $1.99 four times and it comes out to $3.19. by adding .50, the total after four years comes to $3.99. add .80 four times, $5.19. add $1.10 four times and it comes to $6.39. you can also multiply the answer choices by 4 and then add $1.99 to get the same thing.

Answer 2

Option A is correct

$0.30 per lb per year

Explanation:

As per the statement:

The price of apples went from $1.99 per lb to $3.19 per lb in four years.

rate of change in the price of apples in 4 years = $3.19-$1.99 = $1.2 per Ib

We have to find the rate of change of the price of apples per year.

In 4 years, rate of change in price = $1.2 per Ib

then;

In 1 year, rate of change in price = $0.3 per Ib

Therefore, $0.30 per lb per year is the rate of change of the price of apples.