Algebra

Chief Editor

Mar 28, 2024

Table of Contents

Take all 3 MCQs in interactive quiz mode with timer and progress tracking

A company that provides whale-watching tours takes groups of 21 people at a time. The company's revenue is 80 dollars per adult and 60 dollars per child. If the company's revenue for one group consisting of adults and children was 1,440 dollars, how many people in the group were children?

Difficulty: Medium

3

9

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18

In the $xy$-plane, the graph of the linear function $f$ contains the points $(0,3)$ and $(7,31)$. Which equation defines $f$, where $y=f(x)$?

Difficulty: Medium

$f(x)=28x+34$

$f(x)=3x+38$

$f(x)=4x+3$

$f(x)=7x+3$

The number $y$ is 84 less than the number $x$. Which equation represents the relationship between $x$ and $y$?

Difficulty: Easy

$y=x+84$

y=\frac{1}{84}x

$y=84x$

$y=x-84$