Question

Beatriz is creating graphs for her city’s Parks Department. Beatriz is trying to persuade the Parks Department to put in more gazebos for shade. For a local park, Beatriz wants to demonstrate the attendance as it changes every week. She also wants to show the temperature changes per month. Sometimes temperatures reach below zero. Explain to Beatriz how to make the graphs correctly based on the data that she will collect and what labels, scales, and intervals each axis must have on each graph. Use complete sentences and support your reasoning. @jim_thompson5910

Answer 1

any ideas?

Answer 2

She'll have 2 graphs. One graph is going to be showing the attendance and the other is showing the temperature


For the first graph
x = number of weeks
y = attendance
both are positive values


The second graph
x = number of months
y = temperature
x is positive while y could be either positive or negative


both of these graphs would be timeline type of graphs like you see below
http://www.slidegeeks.com/pics/dgm/l/p/powerpoint_presentation_growth_timeline_graphs_ppt_slide_designs_1.jpg

Answer 3

Thanks. The part I really don't understand though is what the scale and intervals would be for each graph

Answer 4

The attendance graph would have

x be scaled by the week (eg: x = 1 represents week 1, x = 2 represents week 2, etc etc)

y is scaled for the attendance. If 100 people show up on week 1, then 400 on week 2, then the proper scaling would be by 100 or by 50. If more people show up, say 1000, then it would be better to scale by the thousands

Answer 5

the temperature graph would have

x scaled by the month (x = 1 is month 1, x = 2 is month 2, etc)

y is the temperature allowing for positive and negative temperatures. I would scale this by 10 or 20

Answer 6

So, say the intervals for the attendance graph are by 1s, so week 1, week 2, etc. how many weeks should i scale it? Perhaps from 1-10 weeks? And for the temperature graph, intervals of 1 again, and a scale from 1-12 to represent the whole year?

Answer 7

well let's say she wants to chart out 3 months

for the attendance graph, you would go from week 1 to week 12 (since 1 month = 4 weeks, approx)

for the temperature graph, you would go from month 1 to month 3

Answer 8

although I'm not sure if you're supposed to sync them up like that

Answer 9

Hm me neither, though it seems logical to sync it up that way so that Beatriz can determine when the popular times are and compare it to temperatures. This way it might show a negative trend in attendance when the temperatures rise to make an argument to put in more gazebos, which i guess is the whole reason for her collecting data. What do you think?

Answer 10

Yeah it makes more sense to sync it up now that I think it over more. The question is: how far should you go out? Is 3 months enough? I picked 3 months because 12 weeks is somewhat manageable. Going out to something like 4 months means you have 16 weeks which is starting to get too big. I'm picturing the x scale to increment by 1 for each graph.

Answer 11

I was thinking the same. More than 12 would be too large for increments of 1. But then again i'm thinking if only a scale of 1-3 for the x on the temperature graph would be too small..

Answer 12

That's true. So maybe do 4 of 5 months?

6 months = 24 weeks seems way too much. But you could increment x by 2.

Answer 13

Hm yea I guess that could work

Answer 14

Ok I think I can make it work with this information. Thank you!

Answer 15

you're welcome