Functions as Tables and Graphs

Which of the following situations
corresponds to this graph?

• A car, accelerates from a stop,travels at a constant speed, slows,
  and then travels at a slower speed.

• An airplane travels at a constant
  speed then decelerates to a slower speed.

• An athlete warms up by walking
  around the track, runs, then jogs.

• A bicyclist accelerates, travels at a
  constant speed, then slows to a
  stop.

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Is this mapping a function or not a function? 

• Function

• Not a Function

Is this graph a function or not a function? 

• Function 

• Not a Function

Which of these tables represent a function?

• A

• B

• C

• D

• all of the above

The graph shows the height (cm) of a candle, y, as it burns over x hours, what does the x-intercept (4.5,0) mean?

• The candle is 4.5 cm tall after a couple of hours.

• Candle start at 4.5 cm,

• The candle is 0 cm after 4.5 hours.

• The candle burns at 4.5 cm per hour.

Which graph represents the table?

• 
• 
• 
• 

Does this describe a function?

• Function

• Not a Function

Is this table a function and how can you tell?

• Yes its a function because there are not variables for missing numbers

• No it's not a function because the y value 4 repeated

• No it isn't a function because the x value 2 is repeated

• No it's not a function because the x value 5 has y values of  10 & 12

Does this table represent a function?

• Yes

• No