Evaluating, working backwards from an output, composing two rules in the right order, reading units off a function defined in words, and the domain a…
12 questions • Zestly
• A function is given by $f(x) = 2x + 5$. For what value of $x$ is $f(x) = 17$?
• A function $h(x) = 5 - 2x$ is evaluated at $x = 4$. What is the result?
• Two functions are given by $f(x) = x + 3$ and $g(x) = 2x$. What is the value of $f(g(2))$?
• Let $f(x) = 3x$ and $g(x) = x - 1$. What is the value of $g(f(3))$?
• A delivery service charges a flat fee plus a per-mile rate. The total cost in dollars, $C(m)$, is a function of the number of miles $m$…
• A solar panel produces energy measured in kilowatt-hours, $E(h)$, where $h$ is the number of hours of sunlight. $E(h) = 4h$. What does…
• A printer prints pages at a constant rate. The number of pages $P(t)$ printed after $t$ minutes is $P(t) = 15t$. What does the input $t$…
• A function $f$ is defined by the following list of values: when $x$ is 1, 2, 3 and 4, $f(x)$ is 3, 5, 7 and 9. What is the value of $f(5)$…
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