Who do you factor a trinomial when the coefficient of x^2 is 1?

What is the inverse of the function f(x) = 2x + 1?

Find the slope of the line passing through a pair of points

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.