The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The monthly cost for 52 minutes of calls is 12.06 and the monthly cost for 100 minutes is 17.34. What is the monthly cost for 74 minutes of calls?

the monthly cost for 74 minutes of calls is 14.48

Step-by-step explanation:

let x represent the number of minutes for the month.

Let y represent the monthly cost for x minutes.

If we plot y on the vertical axis and x on the horizontal axis, a straight line would be formed. The slope of the straight line would be

Slope, m = (17.34 - 12.06)/(100 - 52)

m = 5.28/48 = 0.11

The equation of the straight line can be represented in the slope-intercept form, y = mx + c

Where

c = intercept

m = slope

To determine the intercept, we would substitute x = 52, y = 12.06 and m = 0.11 into y = mx + c. It becomes

12.06 = 0.11 × 52 + c = 5.72 + c

c = 12.06 - 5.72

c = 6.34

The linear function becomes

y = 0.11x + 6.34

The monthly cost for 74 minutes of calls would be

y = 0.11 × 74 + 6.34

y = 14.48

the most boring thing ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.