Maine MTA High School (grade 10) Functions. Practice it free.

The first five terms of an arithmetic sequence are $40, 35, 30, 25, 20$. What is the $12$th term?

Convert $\dfrac{2\pi}{3}$ to degrees.

The function $f$ is defined by $f(x) = \sqrt{x + 21}$. What is the value of $f(x)$ when $x = 4$?

The function $f$ is defined by $f(x) = -2x + 15$. What is the value of $f(x)$ when $x = 3$?

For the function $g$, $g(0) = 100$. For each increase in $x$ by $1$, the value of $g(x)$ increases by $50\%$. What is the value of $g(2)$?

$r = 120 - 8s$

The equation shown gives the estimated number of raffle tickets $r$ remaining after $s$ sales periods at a festival booth, where $0 \le s \le 15\textsf{.}$ What is the estimated number of raffle tickets remaining after $7$ sales periods?

A forest preserve had $4{,}000$ acres of woodland in $2010$. Each year from $2010$ through $2020$, a model estimates that the woodland area decreased by $5\%$ of the area the previous year. Which equation defines this model, where $a(t)$ is the estimated woodland area, in acres, $t$ years after $2010$?

The function $h$ is defined by $h(t) = 125(1.18)^t$. The function $h$ models the number of members in a club, where $t$ is the number of years after the club was founded. According to the model, what is the estimated number of members when the club was founded?