I need help with these 2 problems please. They are my last two and I do not get it

23. Points [5, 2] and III7": 6) are endpoints of the diameter of a circle. (a) 'What is the length of the diameter? Give the exact answer, simplied as much as possible. Show work. {13) What is the center point C of the circle? (c) Given the point C you found in part (b): state the point symmetric to C about the yaxis. 24. Find the equation for a line which passes through the points [1, 4) and (3, E)_ Write the equation in slopeintercept form. Show work