A two column table with 5 rows. The first row, n, has the entries, 1, 2, 3, 4. The second column, f(n), has the entries, 6, 11, 16, 21. Complete the steps to write an explicit formula that represents the sequence.

Find the slope of the line that passes through the points given in the table. The slope is
.
Use one of the given points to find the y-intercept. Substitute values for x, y, and m into the equation y = mx + b and solve for b. The y-intercept is
.
Write the formula as a function of n in slope-intercept form. The function is
for n in the set of natural numbers.