Answer:
<h3>a. How far from home was Danielle after 1/2 hour?</h3>According to the graph, after half hour, Danielle was 1 mile far from home.
<h3>b. What was Danielle's speed between 0 and 1 hour?</h3>To find the speed we have to apply the formula:
From and
, Danielle went from
to
. Replacing this values, we calculate the speed:
Therefore, the speed between 0 and 1 hour is 2 miles per hour.
<h3>c. What was Danielle's speed between 1 and 2 hours?</h3>The Danielle's speed between 1 and 2 hours is zero (). Because, according to the graph, during this time, Danielle didn't move, and without move, there's no speed.
The domain when the function is increasing refers to the increasing <em>x </em>intervals.
From the graph, this increasing interval is from 0 to 1 hours only, it's the only period of time when Danielle was increasing her position.
<h3>e. What is the domain when the function is decreasing?</h3>The parts of the decreasing domain are:
In the graph, you can see these decreasing intervals, which are characterized by a downwards direction of the line.
<h3>f. What is the domain when the function is constant?</h3>The parts where the function is constant:
Constant intervals, means no increase, no decrease, just an horizontal line.
Answer:
Step-by-step explanation:
Given the information, create the following augmented matrix:
The first order was for 1 tray of club sandwiches, at a cost of $9. The second-order, which cost $69, was for 5 trays of club sandwiches and 4 trays of vegetarian sandwiches.
Into an augmented matrix:
Solve.
Let x be the cost of a tray of club sandwiches.
Let y be the cost of a tray of vegetarian sandwiches.