Which value of x must be excluded from the domain of the function, y = 9 / 2 (x + 7) ?

a) - 2

b) - 7

c) 2

d) 7

Question

Trigger

25 November, 20:53

+2

Answers (1)

Know the Answer?

Howard Cannon · Answer 1

B) - 7 because the dominator must be different by 0.

2 (x + 7) ≠ 0 |divide both sides by 2

x + 7 ≠ 0 |subtract 7 from both sides

x ≠ - 7

Which value of x must be excluded from the domain of the function, y = 9 / 2 (x + 7) ?a) - 2b) - 7c) 2d) 7