What is the linear function equation represented by the graph?
Graph of a line on a coordinate plane. The horizontal x-axis ranges from negative 5 to 5 in increments of 1. The vertical y-axis ranges from negative 5 to 5 in increments of 1. A line intersects the y-axis at begin ordered pair 0 comma 1 end ordered pair and passes through at begin ordered pair 4 comma negative 1 end ordered pair.
Enter your answer in the box.
f(x)=
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