### Home > PC3 > Chapter 3 > Lesson 3.1.2 > Problem3-34

3-34.

Use the table below to write an equation for $x_k$ in terms of $k$.

$k$

$x_k$

1

1.5

2

2.0

3

2.5

4

3.0

Notice that both the $k$ and $x_k$-values are increasing linearly. Thus write a linear equation. Start by determining the slope.