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.