Answered

At Westonci.ca, we connect you with the best answers from a community of experienced and knowledgeable individuals. Ask your questions and receive precise answers from experienced professionals across different disciplines. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

The monthly cost of water use is a linear function of the amount of water used (HCF). The cost for using 16 HCF of water is $39.04, and the cost for using 44 HCF is $79.64. What is the cost for using 22 HCF?

Sagot :

mhanifa

Answer:

  • The cost for using 22 HCF is $47.74

------------------------------

Equation of line:

  • y = mx + b, where m- slope, b- y-intercept

Given values can be interpreted as pairs of coordinates of the two points:

  • (16, 39.04) and (44, 79.64)

Find the slope of the line:

  • m = (79.64 - 39.04)/(44 - 16) = 40.6/28 = 1.45

Find the y-intercept, by substituting coordinates of one point:

  • 39.04 = 1.45*16 + b
  • 39.04 = 23.2 + b
  • b = 39.04 - 23.2
  • b = 15.84

The equation becomes:

  • y = 1.45x + 15.84

Find the value of y when x = 22:

  • y = 1.45*22 + 15.84 = 31.9 + 15.84 = 47.74
We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.