Question

You develop an app to help students complete their homework. To earn money, you sell advertising space on the app’s main screen. An advertiser pays you $25 per month and an additional $0.003 each time the app is opened. Graph the linear equation that represents your monthly income y (in dollars) when the app is opened x times. (Just tell me the coordinates since there is no graph)

Answer 1

Let y be the monthly income and x be the number of times the app is opened.

Then the required linear equation will be

`y=25+0.003x`

To find the coordinates, substitute x=0 in the equation, we get

`y=25+0=25`

The first coordinate of above linear equation is (0,25).

Substitute x=100 in the equation, we get

`y=25+0.003(100)\\\Rightarrow\ y=25+0.3=25.3`

The second coordinate of above equation is (100,25.3).

(we can substitute x as per our choice )

With the use of these coordinates (0,25) and (100,25.3), we plot the below graph.