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anonymous
 one year ago
The graph below shows the relationship between the number of months different students practiced tennis and the number of matches they won:
Part A: What is the approximate yintercept of the line of best fit and what does it represent? (5 points)
Part B: Write the equation for the line of best fit in the slopeintercept form and use it to predict the number of matches that could be won after 13 months of practice. (5 points)
anonymous
 one year ago
The graph below shows the relationship between the number of months different students practiced tennis and the number of matches they won: Part A: What is the approximate yintercept of the line of best fit and what does it represent? (5 points) Part B: Write the equation for the line of best fit in the slopeintercept form and use it to predict the number of matches that could be won after 13 months of practice. (5 points)

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campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0A where does the line cut the yaxis

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0y axis is the vertical axis

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i know but what do u mean cut?

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0where it starts on the vertical axis

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0seems to be a bit more that half way between 2 and 4

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0ok... part B, find the slope of the line

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so part a is 3.5? and i have trouble finding slope

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0well you have 1 point (0. 3.5) find another point on the line.

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0I don't think (1, 3) is on the line... on the x axis go up x = 5 till you hit the line what is the point..?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01,3 is the second point

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

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0great so you have 2 points (0, 3.5) and (5, 12) so how far from 0 to 5 this is the run and how far from 3.5 to 12 this is the rise

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0if you start at 0 and go to 5, have far did you go..? and if you start at 3.5 and go to 12 how far did you go..?dw:1438916881622:dw

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0great dw:1438917057707:dw slope is m = 8.5/5 the the equation of your line is y = mx + 3.5 just calculate m and substitute it into the equation

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0m is called the slope of the line... and its defined by m = rise/run you have a rise of 8.5 and a run of 5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0plz its 11:15 and i gotta get up at 6 and i have 8 more lessons to do right now tonight

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0so 8.5/5 = 1.7 so m = 1.7 the equation is y = 1.7x + 3.5 so substitute x = 13 and then calculate a yvalue

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so the yintercept is 1.7 @triciaal

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0the y intercept is when x = 0 when x = 0 it is more than 2 glancing at the graph

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what is the y intercept?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0it represents the number of wins without practice

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0(5,12) and (1, 5) 7/4 12 = 7/4(5) + b (4835)/5 = 2.6

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0guess needs to be rounded can only use whole numbers so yintercept 3

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0y = m x + b y = (7/4) * 13 + 3 26
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