Jess phone bill

Question

Jessica's cell phone company charges her .10 per minute for talk time and charges $30 monthly service fee what would the table be 

Answer 1

 

 

y = $30 + 0.10x

 

 

use x = 0, 1, 2, 3, 4 .....

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x        | 0 |    |1 |       | 2 |         | 3 | 
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y | $30.00 | $30.10 | $30.20 | $30.30 | 
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Answer 2

Let x = the number of minutes that Jessica talks on her phone each month

Let y= Jessica's monthly phone bill

 

y = $30 + ($0.10)x

 

This is the equation of a straight line with a slope (m) = 0.1 and a y-intercept = $30.  If you are trying to set up an input-output table, it would look like this:

 

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x  |      0      |       1     |      2      |      3       |  4               = minutes talked

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y  | $30.00 | $30.10 | $30.20 | $30.30  |  ?                = monthly phone bill

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