Use the graph of the function to find the domain and range of f.
1 answer:
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Answer:
8 hours
Step-by-step explanation:
Joe's data shows the minimum to be 4 hours after his arrival at the beach. The time between maximum and minimum is half a period. (The other half brings the function back to its maximum.) If half a period is 4 hours, the whole period is 8 hours.
-x + y > 5 <em>add x to bot sides</em>
y > x + 5 → y = x + 5
for x = 0 → y = 0 + 5 = 5 → (0, 5)
for x = -5 → y = -5 + 5 = 0 → (-5, 0)
The dotted line (sign >, not ≥).
We shade above the line (y > ...).
