Comparing Exponential, Linear, and Quadratic Growth — Unit test Answers

How many liters of water should be evaporated from 60 liters of a 28% salt solution so that the remaining solution contains 32% salt?

Over which interval does the exponential show a more rapid rate of change?

What is the additive inverse of the expression below, where a and b are real numbers?

Which property of real numbers is shown below?

It takes Franklin 14 hours to make a 200-square-foot cement patio. It takes Scott 10 hours to make the same size patio. Which equation can be used to find x, the number of hours it would take Franklin and Scott to make the patio together?

The graph of an exponential function and a linear function are shown below. Exponential Linear Which statement is true about the functions?

Which of the following sets is closed under subtraction?

Which rule can be used to describe the growth of the y-values of the function over each interval from to ?

Which type of function is represented by the table of values below?xy14216364425651,024

Layna can paint a 350-square foot room in 4 hours. It takes Bebe 7 hours to paint the same room. Which equation can be used to find the time in hours, t, it takes Layna and Bebe to paint the room together? Rate(Rooms per Hour)Time(Hours)Fraction CompletedLayna Bebe

Which equation shows the commutative property of addition?

Two cars raced at a race track. The faster car traveled 20 mph faster than the slower car. In the time that the slower car traveled 165 miles, the faster car traveled 225 miles. If the speeds of the cars remained constant, how fast did the slower car travel during the race? Distance(mi)Rate(mph)Time(h)Slower Car165rFaster Car225r + 20