Benchmark 1 Review

Front

What does the expression 1,567(1−0.3)^t represent in terms of computer value?

Back

The expression represents the value of a computer t years since the computer was purchased.

Front

What does (1 − 0.3) represent in the expression 1,567(1−0.3)^t?

Back

The factor by which the value of the computer is multiplied after 1 year.

Front

What is the solution to the inequality 12r−4(r−3)≤−(6r+1)+2r−11?

Back

r ≤ −2.

Front

What does it mean for one quantity to change at a constant rate per unit interval?

Back

It means that for every unit of time, the quantity changes by a fixed amount.

Front

Provide an example of a situation where one quantity changes at a constant rate.

Back

For every day that passes, a person eats 4 servings of vegetables.

Front

How do you find the value of x where f(x) = g(x) in a graph?

Back

You look for the intersection point of the two graphs.

Front

What is the value of x for which f(x) = g(x) if the answer is 2?

Back

x = 2.

Front

Which function models a situation where n represents an integer greater than 0?

Back

f(n) = 16(1.25)^n.

Front

What does the function f(n) = 16(0.25)^n represent?

Back

It represents exponential decay.

Front

What does the function f(n) = 16(1.75)^n represent?

Back

It represents exponential growth.