Algebra Bell work 1/31/2025

A new hard drive costs $225, plus $40 per hour for labor. The linear equation y = 40x + 225 gives the cost y in dollars for x hours of labor. If Jane has $385 to spend on computer repairs, what is the maximum number of hours the computer technician can work?

• 2 hours

• 3 hours

• 4 hours

• 5 hours

• No solution

• Undefined

• Infinitely many solutions

• One solution

Bea was given the table.

Which of these functions is an exponential function? ​ (a)  

The equation for Function A: ​ (b)  

The equation for Function B: ​ (c)  

• Function A
• Function B

Lisa goes to the mall one day and buys four shirts and 3 pairs of pants for $85.50. She returns the next day and buys three shirts and five pairs of pants for $115.00. Which equation represents the given situation?

Which situations have constant rates of change? Select ALL that apply.

• A) The freeway construction crew pours 450 feet of concrete in a day.

• B) For every hour that passes, the amount of area infected by bacteria quadruples.

• C) Ben tries to double his steps from the previous day.

• D) The city of Buenos Aires has been adding 8% to its population each year.

• E) The Mississippi River flows at a surface rate of 1.2 miles per hour.

• Decay
• decay rate
• growth
• growth rate

• 10 years

• 50 years

• 100 years

• 200 years

A car was purchased for $25,000. THe car depreciates by 24% each year.

How long will it take for the car to be worth less than $500?

​ (a)   years