Nikki C.

asked • 05/09/18

Function word problem

Twitter monthly worldwide active users increased approximately linearly from 42 million users in 2010 to 218 million users in 2013. Let n be the number(in millions) of worldwide active users of twitter at t years since 2000. Find an equation of a linear model to describe the data.

2 Answers By Expert Tutors


Andy C. answered • 05/09/18

4.9 (27)

Math/Physics Tutor

Andy C.

I respectfully disagree.
At time t=0, the enrollment will be 2000
At time t=10 years, the enrollment will be much WORSE.
The independent variable is the number of years since 2000
Intercept B = y - mx where m is the slope and (x,y) is a point on the line.
               slope m=176/3 ;   Using (2010-2000,42) --> X=10 and y=42
      Then the intercept is B = y - mx = 42 - 10*176/3 = -544 and 2/3


Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.