How many ways are there to write a 5 positive integer using the digits 1,2,3,4,5,6,7 and 8 if no digit is used more than once

What is an equation of the line that passes through the point (-2,3) and is parallel to the line whose equations is y=3/2x-4? i am stuck between y=3/2x or y=3/2x+6 : (

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Im literally having a mental breakdown