Functions Quiz

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Is this set of ordered pairs a function or not a function?

(-2, 3), (0,1), (2, -4), (3, -1), (2, 4)

• Function

• Not a Function

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = -1/3x

• y = -3x

Does the graph represent a function? Why or why not?

• Yes, it passes the vertical line test.

• Yes, it fails the vertical line test.

• No, it passes the vertical line test.

• No, it fails the vertical line test.

What is the equation of a line with a slope of 4 and a y-intercept of 2?

• y = -4x + 2

• y = -2x + 4

• y = 4x + 2

• y = 2x + 4

What is the equation by looking at this graph?

• y= x + 3

• y= -x + 2

• y= 2x + 2

• y= x + 2

What is the slope of the table?

• -4
• 1
• 4
• -2

What is the y-intercept in the equation y= -2x + 5

• -2
• 3
• 5
• Cannot be Determined

If you have a slope of 1/2 that means you could...

• Go up 1 and right 2 units.

• Go right 1 and up 2 units.

• Go down 1 and left 2 units.

• Go left 2 and down 1.