On what other interval is the function negative?
Step 1
The absolute value function with vertex (h,k) is defined as f(x)=a
The vertex is (4,14).
Therefore,
The function can be written without absolute value as
Step 2
The function is negative on the interval
Therefore,
Step 3
Thus, the function becomes
Find the intervals on which
Step 4
Therefore, the function is negative on the intervals
That is, the function is negative on
Thus, the other interval in which the function negative is
Answer is given below (on video)
Simplifying Absolute Value Express the quantity without using absolute value.