Algebra Function Notation

Translate the function notation into a coordinate point.

Does this mapping diagram represent a function?

• No, because there are repeating input values

• Yes, because there are no repeating input values

• Function
• Not a Function

• Function
• Not a Function

• Function
• Not a Function

• 5

• 2.5

• 1

• 2

Identify the domain of the following relation:

• -6, 14, 2, 28

• (-6,14), (0,32), (2,38), (4,44)

• -6, 0, 2, 4

• 14, 32, 38, 44

Which choice best describes the slope of a vertical line?

• negative

• steep

• undefined

• zero slope

Which choice shows the equation of this vertical line? Is it a function?

• x = 7 and it is not a function. It fails the vertical line test because it is a vertical line. This means a vertical line will intersect this relation at more than one point.

• y = 7 and it is a function. It's a horizontal line, through 7 on the y axis and passes the vertical line test.

• x = 7 and it is a function. It's a vertical line, so it passes the vertical line test. Sounds like this might make sense.

• y = 7 and it is not a function. It's a vertical line through 7 on the y-axis and fails the vertical line test.

Which choice shows the equation of the horizontal line? Is it a function?

• y = 5 and yes, it is a function. It passes the vertical line test.

• x = 5 and yes, it is a function. It passes the vertical line test.

• x = 5 and no, it is not a function. It fails the vertical line test.

• y = 5 and no, it is not a function. It fails the vertical line test.