Question

Which pairs are solutions to the equation?

5xy + 9 = 44
(Points : 1)
(1, 7) and (4, 11)
(1, 7) and (7, 1)
(7, 1) and (2, 3)
(4, 11) and (2, 3)

Answer 1

xy=7 kind of weird.

Answer 2

y=7/x

Answer 3

so I choose b

Answer 4

5xy+9=44
5xy=44-9
5xy=35
xy=35\5
xy=7

,answer is b. let see how
(1,7) in it x=1 and y=7
5(1)(7)+9=44
35+9=44
44=44
hence one orderpair is satisfied
take another (7,1)
x=7 and y=1
put it in the given equation
5(7)(1)+9=44
35+9=44
44=44
hence shown

Answer 5

thank you