### Home > PC > Chapter 2 > Lesson 2.3.3 > Problem 2-100

2-100.

Find a rule for a linear function such that

*and*

*.*

Use the result from above to express

in sigma notation. Find the slope of the line going through

and.Substitute the point and the slope in the point-slope form to find the equation.

Write the Sigma notation.

Find the sum in part (a).

Add up the terms.