Algebra

Chief Editor

Mar 28, 2024

Table of Contents

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

$y\leq x+7$$y\geq-2x-1$Which point $(x,y)$ is a solution to the given system of inequalities in the $xy$-plane?

Difficulty: Hard

$(-14,0)$

$(0,-14)$

$(0,14)$

$(14,0)$

A team of workers has been moving cargo off of a ship. The equation below models the approximate number of tons of cargo, $y$, that remains to be moved $x$ hours after the team started working. $y=120-25x$ The graph of this equation in the $xy$-plane is a line. What is the best interpretation of the $x$-intercept in this context?

Difficulty: Medium

The team will have moved all the cargo in about 4.8 hours.

The team has been moving about 4.8 tons of cargo per hour.

The team has been moving about 25 tons of cargo per hour.

The team started with 120 tons of cargo to move.

$y=2x+10$ $y=2x-1$ At how many points do the graphs of the given equations intersect in the $xy$-plane?

Difficulty: Medium

Zero

Exactly one

Exactly two

Infinitely many