Using the graph function, the output, y, when the input, x is 4 is determined as: y = 1.
How to Find the Input and Output of a Function Using a Graph?
The input of a function is plotted on the x-axis (horizontal axis) of a graph, while the output is plotted against the input on the y-axis (vertical axis) of the graph.
To find any given input, trace the value against the corresponding output on the y-axis of the graph.
We are given an input, x = 4, to find the output, y, we have to trace this value from the graph to see which y-value on the y-axis corresponds or relates to x = 4.
Thus, from the graph, the y-value that corresponds to x = 4, is: 1. That is, when x = 4, y = 1.
Therefore, considering the graph function, the output, y, when the input, x is 4 is determined as: y = 1.
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