Question

Identify the domain and range of the reciprocal function y=2 over x-3 (-7)

Answer 1

B , D

Explanation:

domain

x - 3 ≠ 0

x ≠ 3

range

(x-3)y = 2 -7(x-3)

xy - 3y = 2-7x + 21

7x + xy = 3y + 21

x(7+y) = 3y + 21

x = 3/(7+y) + 21/(7+y)

y ≠ -7