Chapter 4, Problem 1CE

To determine

To graph: A graph of the function given from x = 0 to 100,000.

Explanation of Solution

Given:

Per-person income is the x-variable and the life expectancy as the y-variable.

$f(x)=15.32+6.178\ln x$

Graph:

For the given function to plot the graph, put the value of x from $0$ to $100,000$ and trace the points.

Step1: On Ti-83 graphing calculator press Y= and enter the function given.

Step2: Tap on WINDOW button and set the values of range x as Xmin=0 and Xmax=100,000.

Step3: Tap on GRAPH button and observe the graph.

The graph of the function is shown below:

Interpretation:

The shape of the graph is increasing and after some values of $x$, it is becoming constant.