The table shows the number of minutes jalen talks on his mobile phone and the cost of the phone calls. jalen’s mobile phone cost number of minutes, x 150 220 250 275 cost, y $7.50 $11.00 $12.50 $13.75 if the cost varies directly with the number of minutes jalen talks on the phone, which equation represents the variation?

Step-by-step explanation:

Given :

x                    Cost, y  

150               $7.50  

220              $11.00

250              $12.50  

275              $13.75

To Find: If the cost varies directly with the number of minutes Jalen talks on the phone, which equation represents the variation?

Solution:

To find equation we will use two point slope form.

Substitute the values in the formula.

Hence the equation which represents the variation is  

answer: 12

step-by-step explanation:

because yes

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3