5.1 Review Worksheet, Part 1
5.1.1 Identifying Linear Functions Identify whether each graph represents a function. Explain. If the graph does represent a function, is the function linear?
1.
2.
3.
y
y
y
4
4
4
2
2
2
x
x
x
0
–4 –2
2
4
0
–4 –2
2
4
0
–4 –2
2
4
–2
–2
–2
–4
–4
–4
Tell whether the given ordered pairs satisfy a linear function. Explain.
4.
5.
x y
x y
− 3 0 3 6 9 − 1 0 2 4 − 2
− 1 0 1 2 3
− 3
− 2
− 1 0 1
6. {(3, 4 ), (0, 2), ( − 3, 0), ( − 6, − 2), ( − 9, − 4)}
Tell whether each function is linear. If so, graph the function.
x 3
7. y = 5
8. 4 y − 2 x = 0
9.
10. 5 + 3 y = 8
+ = y
4 10
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