Please help me with this

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .