Take this Exam: PSAT Advanced Math — function notation and what it stands for | Zestly

Question 1

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 $t$ represent?

Accepted Answer

The time in minutes.

Answer

The cost per page.

Answer

The total number of pages.

Answer

The speed of the printer.

Question 2

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 $f(5)$ if the pattern continues?

Accepted Answer

11

Answer

10

Answer

12

Answer

13

Question 3

A function $g$ is defined by the following list of values: when $x$ is 0, 1, 2 and 3, $g(x)$ is 1, 4, 7 and 10. Which rule defines $g(x)$?

Accepted Answer

$g(x) = 3x + 1$

Answer

$g(x) = x + 1$

Answer

$g(x) = 4x$

Answer

$g(x) = 2x + 2$

Question 4

A baker makes loaves of bread. The function $L(b) = 12b$ represents the number of loaves $L$ produced from $b$ batches. If the baker can make at most 10 batches, what is the domain of $b$?

Answer

All numbers greater than 0.

Answer

All numbers less than 120.

Answer

All real numbers.

Answer

All integers from 0 to 10.

Question 5

A car's fuel efficiency is $M(g) = 30g$, where $M$ is miles and $g$ is gallons of gas. The tank holds 15 gallons. What is the domain of $g$?

Answer

$g \leq 15$

Answer

$0 \leq g \leq 15$

Answer

$0 \leq g \leq 450$

Answer

$g \geq 0$

Question 6

A function is given by $f(x) = 4 - 3x$. What is the value of $f(-2)$?

Answer

-10

Answer

1

Answer

10

Answer

-2