You would do
51-5= 46
then you would divide
46/2= 23
so Susan is
23+5=28
Susan is 28 years old and her sister is 23
28+23=51
The answer is −3.555555555555556 but you can just put -3.55
A, C, and E.
you can check them by putting into y=mx+b form. if m is negative then as domain increases range decreases.
The function is even with a negative leading coefficient. Even means the tails both go the same way, negative means they both go down.