Question

Asked Sep 30, 2019

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A local retailer has determined that the number x of PortaBoy game systems sold in a week is related to the price pp in dollars of each system. 105 game systems were sold when the price was $140. When the systems went on sale the following week, 210 systems were sold at $80 a piece.

1) Find a linear function which fits this data. Use the weekly sales x as the independent variable and the price p as the dependent variable.

p(x)=

2) Find a suitable applied domain:

3) If the retailer wants to sell 315 PortaBoys next week, what should the price be?

Answer: p=__________ dollars

2)A car rental company offers two plans for renting a car.

Plan A: $38 per day and unlimited mileage

Plan B: $22 per day plus $0.20 per mile

Use an inequality to find the number of daily miles for which plan B costs more than plan A.

Step 1

Hey, since there are multiple questions posted, we will answer first question. If you want any specific question to be answered, then please submit that question only or specify the question number in your message.

Step 2

1.

Let *x* represents the number of portaboy game and p represents the price in dollars of each system.

When *x* = 105 then p = 140.

Then the point is (105, 140).

When *x* =210 then p = 80.

The point is (210,80).

To find a linear function, obtain the slope for the above 2 points.

Step 3

Let the linear equation be p(x) = mx + c.

Substitute the valu...

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