Table shows the number of cellular phone subscribers in the United States and their average monthly bill in the years from 2000 to 2010.

Aneeka Hunt

Aneeka Hunt

Answered question

2021-08-10

Table shows the number of cellular phone subscribers in the United States and their average monthly bill in the years from 2000 to 2010.
YearSubscribersAverage Local   (millions)Monthly Bill ($)2000109.545.272001128.447.372002140.848.402003158.749.912004182.150.642005207.949.982006233.050.562007255.449.792008262.750.072009276.648.162010300.547.21
One of the scatter plots clearly suggests a linear model. Use the points at t=10 and t=20 to find a model in the form y=mx+b.

Answer & Explanation

Liyana Mansell

Liyana Mansell

Skilled2021-08-11Added 97 answers

Step 1

Given: (10,109.5)(20,300.5)
So: Slope=19110×19.1
y109.5=19.1(x10)
y109.5=19.1x191
Answer: y=19.1x81.5

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