Chapter 3 and Exam

Is this a function?

• Yes

• No

• I'm Confused

• May I phone a friend?

Is this mapping a function and how can you tell?

• Yes its a function cause all the numbers have lines
• No it's not a function because there a 5 in both ovals
• No it's not a function because the x value 5 has y values of  2 & 9
• No it's not a function because the y value 5 has x values of  2 & 9

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D: {-4, 0, 1, 2}
  R:{-4, -3, 1}
• D: {0, 1, 2, 3, 4}
  R:{1, -3, -4}
• D: {0, 1, 2, -4}
  R: {1, -3, -4, 1}

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Which equation matches the table?

• y = x + 5
• y = 5x
• y = x - 5
• x = y - 5

Which equation matches the table?

• y = x + 5
• y = 6x
• y = x + 6
• times 6

Find the slope of:
(1,8) and (3,12)

• 2
• 1/2
• 9/7
• -2

Find the slope of:
(-4,5) and (-4, 2)

• 0
• 6
• undefined
• -3/8

Find the slope of:
(7,1) and (-2,1)

• 0
• -1/2
• undefined
• -8

Use the graph to determine the equation of the line in slope-intercept form. 

• y = x - 1 
• y = -x + 1
• y = 2x + 1 
• y = x + 1