8. Is the line 'a' perpendicular to 'b'?

The line '\(a\)' passes through the points \((2, 0)\) and \((-3, 15)\), and the line '\(b\)' passes through the points \((3, -2)\) and \((15, 2)\). Is the line '\(a\)' perpendicular to '\(b\)'?

 

The slope of line '\(a\)' \(=\)

 

The slope of line '\(b\)' \(=\)

 

The line '\(a\)' perpendicular to '\(b\)' :