SHS Algebra Unit 5 and 6 Practice Test

The function f(x) = 1500(1.03)^t models the value of Jessica's car savings account as function of time in years. Which of the following is true?

• Jessica initially placed $1500 in the account and her money increases by .97 times the years in the money is in the account.

• Jessica initially placed $1500 in the account and her money decreases by 1.03 times the years in the money is in the account.

• Jessica initially placed $1500 in the account and her money increases by 3% each year the money is in the account.

• Jessica initially placed $1500 in the account and her money decreases by 3% each year the money is in the account.

Tags

CCSS.HSF.LE.B.5

The table shows values of an exponential function. Which best describes the situation represented by the function?

• The number of infections increases by a factor of 2 each day.

• There were initially 2 infections reported.

• The number of infections increases by 2 times the number of days that go by.

• The number of infections is decreasing by a factor of 2 each day.

Tags

CCSS.HSF-LE.A.1A

Which of the following functions is represented by this graph?

• f(x)=2(1.2)^x
• f(x)=2(0.75)^x
• f(x)=6(0.75)^x
• f(x)= −2(0.75)^x

Tags

CCSS.HSF.LE.A.2

Select all the equations that represent exponential decay.

Tags

CCSS.HSF-IF.C.8B

Your 6 year investment of $40,000 at 14% interest compounded annually is worth how much now?

• $47,798.90
• $87,798.90
• $127,798
• $7,798

Tags

CCSS.HSF.BF.A.2

In March, 2020, before the Covid-19 lockdown, 1,200,000 Texans had applied for unemployment. During the COVID-19 lockdown, the number of people applying for unemployment increased by 4% each month. What exponential function can be used to find the number of people applying for unemployment after x months of COVID-19 lockdown?​

Tags

CCSS.HSF.LE.A.2

Find the equation and statement of the exponential function represented by the table.

Tags

CCSS.HSF.LE.A.2

Which equation corresponds to the graph below.

Tags

CCSS.HSF.LE.A.2

What is the "a" or y-intercept of the function?

• 2

• 1

Tags

CCSS.HSF-IF.C.7E

Tags

CCSS.HSF-IF.C.8B