Georgia Milestones Algebra I Linear, Quadratic, and Exponential Models. Practice it free.

A lab culture starts with $2{,}000$ cells. Each hour, a model estimates that the number of cells triples. Which equation defines this model, where $c(h)$ is the estimated number of cells $h$ hours after the culture begins?

The function $g$ is defined by $g(t) = 840(0.5)^{t/4}$. The function $g$ models the mass, in milligrams, of a medicine in a patient's bloodstream, where $t$ is the number of hours after an injection. According to the model, what is the estimated mass, in milligrams, of the medicine at the time of the injection?

You invest $\text{\char36}100$ at $10\%$ annual interest compounded yearly for $2$ years. What is the total?

The function $p$ is defined by $p(w) = 1{,}250(1.04)^{w}$. The function models a savings balance, in dollars, $w$ weeks after an account is opened. Which statement is the best interpretation of $1{,}250$ in this context?

A plant's height $H$, in centimeters, after $w$ weeks of growth is modeled by $H = 1.8w + 12$. Which of the following is the best interpretation of $1.8$ in this context?

A plumber charges a flat fee for a service visit plus a fixed amount per hour of work. Let $h$ be the number of hours worked and $C$ be the total charge in dollars. The situation is modeled by $C = 65h + 40$. Which is the best interpretation of the number $65$ in this equation?

Tutoring cost, in dollars, for $x$ lessons:
$\begin{array}{c|cccc} x & 0 & 1 & 2 & 3 \\ \hline f(x) & 40 & 65 & 90 & 115 \end{array}$
The cost is $f(x)=25x+b\textsf{.}$ What is $b\textsf{?}$

The table shows values of a linear function $g\textsf{.}$
$\begin{array}{c|c} x & g(x) \\ \hline 0 & 15 \\ 1 & 12 \\ 2 & 9 \\ 3 & 6 \end{array}$
Which of the following is $g(x)\textsf{?}$