Question

Solve the equation. |k+ 9| = 4

A. {-13,-5)
B. {-5,5)
c. {-5, 13)
D. {all real numbers greater than or equal to -13 and less than or equal to -5}

Answer 1

A. {-13, -5}.

Explanation:

|k + 9| = 4

k + 9 = 4 so k = -5.

k + 9 = -4 so k = -13.