CMAS High school Functions. Practice it free.

The first five terms of an arithmetic sequence are $2, 6, 10, 14, 18$. What is the $17$th term?

The function $f$ is defined by $f(x) = x^{2} - 10$. What is the value of $f(x)$ when $x = 6$?

The function $f$ is defined by $f(x) = \sqrt{x + 5}$. What is the value of $f(x)$ when $x = 11$?

For the function $f$, $f(0) = 160$. For each increase in $x$ by $1$, the value of $f(x)$ decreases by $50\%$. What is the value of $f(3)$?

$b = 100 - 4h$

The equation shown gives the estimated battery charge $b\textsf{,}$ as a percent, remaining on a laptop after $h$ hours of use, where $0 \le h \le 20\textsf{.}$ What is the estimated battery charge, as a percent, remaining on the laptop after $12$ hours of use?

What is the value of $\log_{2}32\textsf{?}$

An account starts with $\text{\char36}500$ and earns $20\%$ interest compounded yearly.

Choose the function model that correctly calculates the amount in the account after $3$ years.

The function $L$ is defined by $L(w) = 180(0.88)^{w/2}$. The function $L$ models the light output, in lumens, from a bulb, where $w$ is the number of weeks the bulb has been in use. According to the model, what is the estimated light output, in lumens, after $2$ weeks of use?