The graph below represents the total amount of chips in the bag in oz., y, over time, x, in minutes.

x+2y=7
(0.35)
(7,0)

(3 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
1) What is the end behavior of the graph? Response area

2) What would be a reasonable domain for this scenario? Response area

3) What would be reasonable outputs for the scenario domain? Response area

1 answer

To answer the questions regarding the graph represented by the equation \( x + 2y = 7 \), let's break it down for each part of your inquiry.

1) What is the end behavior of the graph?

The end behavior of the graph refers to what happens as \( x \) approaches large values (both positive and negative). Rearranging the equation into slope-intercept form gives us: \[ y = -\frac{1}{2}x + \frac{7}{2} \] This linear function has a negative slope, indicating that as \( x \) increases, \( y \) decreases. As \( x \) approaches infinity, \( y \) approaches negative infinity.

Response: As \( x \) approaches infinity, \( y \) approaches negative infinity.

2) What would be a reasonable domain for this scenario?

The scenario involves the total amount of chips in a bag over time, which realistically cannot be negative. Thus, the domain extends from the starting point (where time \( x = 0 \)) to when the chips are gone. Considering the equation \( x + 2y = 7 \) suggests that \( y \) must be \( 0 \) at some point.

To find the maximum \( x \): Setting \( y = 0 \): \[ x + 2(0) = 7 \implies x = 7 \] Thus, the reasonable domain is from \( 0 \) to \( 7 \).

Response: Domain: \( [0, 7] \)

3) What would be reasonable outputs for the scenario domain?

The output, which represents the total amount of chips in ounces, also needs to be non-negative. From the equation \( x + 2y = 7 \), we can express \(y\) in terms of \(x\): \[ y = \frac{7 - x}{2} \] For \( x = 0 \), \( y = \frac{7 - 0}{2} = 3.5 \) ounces. For \( x = 7 \), \( y = \frac{7 - 7}{2} = 0 \) ounces. Therefore, as \( x \) varies from \( 0 \) to \( 7 \), \( y \) varies from \( 3.5 \) oz to \( 0 \) oz.

Response: Outputs: \( [0, 3.5] \)

With these responses, you should be able to populate the areas of your request accurately.