Question

Because of the use of lithium batteries in all forms of​ applications, the demand for lithium is projected to steadily increase. Using data from 2017 and projected to​ 2025, the function Upper D equals 23.5 t plus 171.3 can be used to model the demand for lithium in metric​ tons, where t is the number of years after 2015. Complete parts ​(a) through ​(c).

s this a linear​ function? Why or why​ not? Choose the correct answer below.
A.
This a linear function because each of the variables t and D appear to the first power and the function is written in the form Dequalsatplusb.
B.
This a linear function because t and D are not in separate terms.
C.
This a linear function because t and D appear to the second power.
D.
This a linear function because D is alone on the left side of the equation.

Answers

GPT-4o mini
The correct answer is:

A. This is a linear function because each of the variables \( t \) and \( D \) appear to the first power and the function is written in the form \( D = at + b \).

This form indicates a linear relationship between the variables, where \( a \) represents the slope and \( b \) represents the y-intercept.