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anonymous
 one year ago
A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $135 for 100 minutes of usage and $375 for 500 minutes of usage. An equation can be written to show the relationship between the total minutes used (x) and the total monthly charges (y). Which of the following best describes the steps to draw the graph of y against x?
anonymous
 one year ago
A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $135 for 100 minutes of usage and $375 for 500 minutes of usage. An equation can be written to show the relationship between the total minutes used (x) and the total monthly charges (y). Which of the following best describes the steps to draw the graph of y against x?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Draw a graph which joins the points (135, 100) and (375, 500) and has a slope = 0.6 Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 0.6 Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 1.67 Draw a graph which joins the points (135, 100) and (375, 500) and has a slope = 1.67

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@campbell_st , @Nnesha

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1First off, what are the two points?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Points: (# of minutes, cost). You have 2 pairs of minutes and costs. Try to write the points with them

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Exactly. So for example, if it says "50 minutes cost $35" then that would translate into the ordered pair (50, 35).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh okay @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so based on that example and what peachpi said, what are the two ordered pairs in this case?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the two ordered pairs are (135,100) and (375,500)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1unfortunately you mixed up the cost and minutes

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1"The company charges $135 for 100 minutes" means x = 100 y = 135 x is the minutes y is the cost

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so "The company charges $135 for 100 minutes" is the ordered pair (100,135)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what is the other point?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so we have (100,135) and (500,375)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1use the slope formula \[\Large m = \frac{y_{2}y_{1}}{x_{2}x_{1}}\] to find the slope of the line through the two points (100,135) and (500,375)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434346947472:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Then I got the answer 0.6

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I'm getting the same thing too

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so the slope is m = 0.6

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you're welcome

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you help with another please?
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