### Home > A2C > Chapter 2 > Lesson 2.2.2 > Problem 2-138

2-138.

Find a rule for each sequence below. Then describe its graph.

First, decide if the given sequence is arithmetic or geometric.

Common difference =

So,

Find the value of

*b*at. Write the equation once you know

*b*. Then describe the graph.The graph is a straight line with the

*y*-intercept at (0, 17) and a slope of −3.

The multiplier is less than

. You will need to find

*t*(0) to write the equation.This graph is not linear.

Use the eTool below to view the graphs.

Click the link at right for the full version of the eTool: A2C 2-138 HW eTool