Determine whether a linear, quadratic, or exponential function best models the data. Then, use regression to find the function that models the data. x

iohanetc

iohanetc

Answered question

2021-06-22

Determine whether a linear, quadratic, or exponential function best models the data. Then, use regression to find the function that models the data. 

x01234y10089.578.968.457.8

Answer & Explanation

escumantsu

escumantsu

Skilled2021-06-23Added 98 answers

a) Check the 1st differences of the consecutive y-values. Since they are nearly constant, we can use a linear model.
y1st differences10089.589.5100=10.578.978.989.5=10.668.468.478.9=10.557.857.868.4=10.6
b)At the WolframAlpha web site you can enter: fit linear {{0,100},{1,89.5},{2,78.9},{3,68.4},{4,57.8}}
Which results i y=100.0210.55x

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?