Question

4 and 5 only (ignore what i already wrote if u want)

Answer 1

Step-by-step explanation:

y²-y¹/x²-x¹

4-(-2)/5-(-3)

6/8

=3/4

y²-y¹/x²-x¹

(-3)-5/3-(-6)

-8/9

= -8/9