Find the output, yyy, when the input, xxx, is 777.

Answer:
Step-by-step explanation:
Input = x - coordinate
Output = y - coordinate
Look for the point of the graph wth the x-coordinate of 7.
This is point (7, 4), it means the y- coordinate is 4.
When x is 7 we need y
Indirectly the question is asking for f(7)
On graph we can see
So