Directions: Find the slope between the given two points. 7. (-1. -11) and (-6. -7) 8. (-7 -13) and (1, 5) 9. (8, 3) and (-5, 3) 10. (15. 7) and (3. -2) 11. (-5. -1) and (-5, -10) 12. (-12 16) and (-4. -2) Directions: Use slope to determine if lines PO and RS are parallel, perpendicular, or neither. 13. P(-9. -4). 0(-7, -1). R(-2. 5), 51-6. -1) mm ( PO TH\\ RS Types of Lines Gina Winon IAl Things Algebras, LLC) 2014-208