Question

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

Answer 1

When x is 7 we need y

Indirectly the question is asking for f(7)

On graph we can see

• A point (7,4) is present

So

• f(7) is 4

Answer 2

• y = 4

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.