Growth Rate and Growth Factor

• 1.05

• 5%

• 50%

• 1.05

• 5%

• 50%

• 1.75

• 75%

• 0.1

• 1.75

• 75%

• 0.1

• 1.04

• 4%

• 40%

• 1.04

• 4%

• 7

On the day a certain celebrity proposes marriage, 8 people know about it. Each day afterward, the number of people who know grows by 50%.

Which expression gives the number of people who know about the proposal after 4 days?

• 8(0.5)⁴

• 8(1.5)⁴

• 8(50)⁴

Shota invests $1000 in a certificate of deposit that earns interest. The investment's value is multiplied by 1.02 each year.

Which expression gives the investment's value after 5 years?

• 1000(1.02)⁵

• 1000(1+1.02)⁵

• 1000+1.02⁵

The town of Springfield, USA has a population 9900 people. The population is growing at a rate of 2.3% each year.

Which expression gives the town's population 5 years from now?

• 9900(2.3⁵)

• 9900(0.023)⁵

• 9900(1.023)⁵

Javier bought a painting for $150. Each year, the painting's value increases by a factor of 1.15.

Which expression gives the painting's value after 7 years?

• 150(1.15)⁷

• 150 + 1.15⁷

• 150(1+1.15)⁷