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JozelynW
 one year ago
Two ocean beaches are being affected by erosion. The table shows the width, in feet, of each beach at high tide measured where 1995 is represented by year 0.
JozelynW
 one year ago
Two ocean beaches are being affected by erosion. The table shows the width, in feet, of each beach at high tide measured where 1995 is represented by year 0.

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JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0Describe the patterns shown by the erosion data measurements shown for each of the beaches in the table. Between which years will the beaches have approximately the same width? Assuming these rates remain constant, what can you do to get a better approximation of when the two beaches will have the same width?

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0Year number Western Beach width (in feet) Dunes Beach width (in feet) 0 100 20 5 90 45 10 80 70 11 78 75 12 76 80 15 70 95

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi please helppp

CBARREDO1
 one year ago
Best ResponseYou've already chosen the best response.1Western Beach is losing sand, Dunes beach is gaining sand. Between 11 and 12 years Plot the data against time and draw a curve that goes through the data. Where the two lines cross is the time when both beaches are the same width.

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0ok i think you are correct does anyone agree with him.

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0I don't need to get anything wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@CBARREDO1 is correct

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0You are such a great person I always count on you to help me with me with math @peachpi thanks a lot.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You're welcome. Thank you! I appreciate that :)

CBARREDO1
 one year ago
Best ResponseYou've already chosen the best response.1I feel left out here ;;

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0and thanks to you as well c

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0so @CBARREDO1 is this your paper or did you just do this tooday

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0because i don't want to copy

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@CBARREDO1 don't feel left out. you did all the hard work! :)

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0yea definitely i just messaged him

CBARREDO1
 one year ago
Best ResponseYou've already chosen the best response.1what paper are you talking about?

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0the problem response you gave me

CBARREDO1
 one year ago
Best ResponseYou've already chosen the best response.1No, I just analyzed, where could I copy it from xD?

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0@CBARREDO1 how would i graph this on geogbra

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0ldo you know what is desmos

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi do you know how to graph on geogbra

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0ok how on desmos. i don't know hot to graph point only equations

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry I don't know geobra. I don't really know how to do points on desmos.

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0cant be mad cause i don't know either.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you can make equations for the lines by hand or use wolframalpha to get the line between points. then graph the lines on desmos

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0im on the website and i dont know where to go

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Go to wolframalpha.com There should be a box to type in. Enter this to get an equation for the first beach: line through (0,100) and (5,90)

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0well is their another 2 point to do?

CBARREDO1
 one year ago
Best ResponseYou've already chosen the best response.1put that equation in desmos, and then the line comes do the same for the next

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0wait but aren't we trying to figure out the approx for year 11 and 12

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0when they will be the same width

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0approximation of when the two beaches will have the same width?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that's why you're graphing them. once you have the lines graphed you're looking for the intersection point, which will be between 11 and 12

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0but 0,100 is is year 0 while 5,90 is year 5. Year 11 and 12 are the closest, so should't we be doing year 11 and 12 then finding where intersection point is?

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0and how will we have two lines

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi WHAT HAPPENED

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry didn't realize you had posted something here. You're going to have 2 different equations, one for each beach. We found the first equation is y = 100  2x. Find the second one using 2 points from the other beach, like (0, 20) and (5,45). As far as choosing 11 and 12, it doesn't matter. It takes 2 points to define a line, it doesn't matter which two points you use. You can use the points that correspond to 11 and 12 and the results will be the same. I just picked the two I chose because they were the top two points.

JozelynW
 one year ago
Best ResponseYou've already chosen the best response.0I COPY AND PASTED JUST AS IT IS HERE SO IT IS Y=5X+20 sorry about caps

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok. so the two lines you're going to graph are y = 5x + 20 and y = 1002x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and you're looking for the intersection point
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