### Home > PC3 > Chapter 3 > Lesson 3.1.5 > Problem3-80

3-80.

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

 $k$ $x_k$ 1 3 2 3.2 3 3.4 4 3.6

This is a linear function. Write the equation of a line that passes through the points $(1,3)$ and $(2,3.2)$.