Find a formula for each function graphed on the right.

a.

0904xy

left parenthesis 3 comma 1 right parenthesis(3,1)

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A coordinate system has a horizontal x-axis labeled from 0 to 9 in increments of 1 and a vertical y-axis from 0 to 4 in increments of 1. A graph is composed of two line segments. The first line segment starts at the open endpoint (0, 3) and falls from left to right to the closed endpoint at (3, 0). The second line segment starts at the open endpoint labeled (3, 1) and falls from left to right to the closed endpoint at (8, 0).

b.

-23-54xy

left parenthesis 2 comma negative 3 right parenthesis(2,3)

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A coordinate system has a horizontal x-axis labeled from negative 2 to 3 in increments of 1 and a vertical y-axis from negative 5 to 4 in increments of 1. A graph is composed of two line segments. The first line segment starts at the open endpoint (negative 1, 0) and falls from left to right to the closed endpoint at (0, negative 4). The second line segment starts at the open endpoint (0, 3) and falls from left to right to the closed endpoint labeled (2, negative 3).