I am having issues with a few of my study guide questions, if you could show how, thank you.

1. Let P = (1, -2) and Q. = (6, 4) a. Find the midpoint of the line segment PQ b. Find the point T that is 1/8 of the way from P to Q on the line segment PQ 2. How close does a. the line y = 7 + 4x come to the point (1, -2)? b. the circle with radius 3 and center at (2, 6) come to the point (7, 6)? 3. For f(x) and g(x) defined as: f( x ) = if x