### Home > PC3 > Chapter 3 > Lesson 3.1.4 > Problem3-60

3-60.

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

 $k$ $x_k$ 1 0.50 2 1.25 3 2.00 4 2.75

Notice that this is a linear function, so determine the slope and then use slope-intercept or point-slope form to write the equation.