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anonymous

  • one year ago

Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625. Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x days. (4 points) Part B: Write the equation obtained in Part A using function notation. (2 points) Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals. (4 points)

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  1. anonymous
    • one year ago
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    part A: Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x days. (4 points)

  2. anonymous
    • one year ago
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    @peachpi I already have part A: though.

  3. anonymous
    • one year ago
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    @Michele_Laino

  4. anonymous
    • one year ago
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    @phi

  5. phi
    • one year ago
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    what did you get for A?

  6. anonymous
    • one year ago
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    part A: y=65+80(x) plug in 5. 65+80(5) y=65+400. y=465. when he rents the bike for five days, he pays 465. so if he rents it for a week he would be renting it for7 days (x)days. so y=65+80(7) 65+560. y=625.

  7. phi
    • one year ago
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    that is the correct equation, but I do not know what the rest is. If you want to show your work, start by saying you have these two pairs: (5,465) and (7,625) and find the equation of a line through two points.

  8. anonymous
    • one year ago
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    the rest would be what he has to pay in the week and I had to show how I got to 625

  9. phi
    • one year ago
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    first find the slope = change in y divided by change in x = (625-465)/(7-5) = 160/2 = 80 so y= 80x + b using (5,465) in that to find "b" 465= 80*5 + b 465= 400 + b b= 465-400 = 65 so the equation is y= 80x+65

  10. phi
    • one year ago
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    part B, use "function notation" I think they want you to write f(x) = 80x+65

  11. anonymous
    • one year ago
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    ok. and so for part C?

  12. phi
    • one year ago
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    part C. I would say , plot two points on the line, and "connect the dots" x axis is days y axis is rental in dollars

  13. phi
    • one year ago
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    to make it fit on the graph better, you might want each "step" in the y-direction be say 20 or 40 dollars (rather than 1)

  14. anonymous
    • one year ago
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    ok thank you.

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