Alg Unit 4 Test Review

Is the following a function? Explain.

• Yes, because it passes the vertical line test.

• Yes, because each input is mapped to exactly 1 output.

• No, because it fails the vertical line test.

• No, because the lines do not go straight across.

Is the following a function? Explain.

• Yes, because each input is mapped to exactly one output.

• Yes, because it passes the vertical line test.

• No, because it fails the vertical line test.

• No, because each input does not map to exactly one output.

Is the following a function? Explain.

• Yes, because it passes the vertical line test.

• Yes, because it is on a graph.

• No, because it fails the vertical line test.

• No, because each input has more than one output.

Domain is the set of all...

What is the domain of this function?

• 3

• $-4\le x\le-1$

• $-2\le x\le2$

• x = -4

What is the range of the function?

• $-4\le y\le-1$

• $-2\le y\le1$

• $-2\le y\le2$

• 2

What is the Range of the function shown?

• $-2\ \le\ x\ \le\ 9$

•  $-2\ \le\ y\ \le\ -9$ 

• $-2\ \le\ y\ \le\ 9$

•  $-9\ \le\ y\ \le\ -2$ 

• $-9\ \le\ x\ \le\ -2$

What is x if
f(x) = -2?

• 4
• 0
• 3
• 8

What is f(1)?

• 1
• 5
• 0
• 4

What is the minimum of this graph?

• (-2,6)
• (-0.5,-3.5)
• (-1,-3)
• (3,0)