NJSLA Algebra II Interpreting Functions. Practice it free.

The $x$-intercept of the graph of $y = 5x - 15$ in the coordinate plane is $(x, 0)$. What is the value of $x$?

The function $f$ is defined by $f(x) = 7x - 4$. What is the value of $f(x)$ when $x = 3$?

The function $f$ is defined by $f(x) = \sqrt{2x + 1}$. What is the value of $f(x)$ when $x = 4$?

For the function $p$, $p(0) = 200$. For each increase in $x$ by $1$, the value of $p(x)$ decreases by $10\%$. What is the value of $p(2)$?

$g = 9 - \dfrac{m}{4}$

The equation shown gives the estimated amount of paint $g\textsf{,}$ in gallons, remaining after covering $m$ square meters of wall, where $0 \le m \le 36\textsf{.}$ What is the estimated amount of paint, in gallons, remaining after covering $12$ square meters of wall?

At what $x$-value does the graph of $y = 3(x - 5)^2(x + 8)$ intercept the $x$-axis?

The function $h$ is defined by $h(t) = -16t^{2} + 64t + 5$. The function models the height, in feet, of a baseball $t$ seconds after it is hit. Which of the following is the best interpretation of the statement "$h(2)$ is equal to $69$" in this context?

A warehouse tracks inventory with $I(t) = -2t^2 + 6t + 85$, where $I(t)$ is the number of units on hand $t$ weeks after a shipment arrives. According to the model, how many units were on hand when the shipment arrived?