T4: Interpreting Functions

Is this table a function?  Why?

• Yes, because none of the inputs repeat.
• Yes, because the inputs repeat but have the same output.
• No, because the inputs repeat and have different outputs.

Tags

CCSS.HSF.IF.A.1

Is the graph a function?  Why?

• Yes, it's a perfect circle.
• No, if I draw a vertical line, it crosses twice.
• Yes - if I draw a vertical line, it crosses only once.
• No - it's a perfect circle.

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Which of the two linear functions above has the higher rate of change?  Explain.

• The blue one because it is the most steep.
• The blue one because it is the least steep.
• The green one because it is the most steep.
• The blue one because it is the least steep.

Is the graph a function?  Explain.

• Yes, because if I draw a vertical line, it only crosses once.
• No, because if I draw a vertical line, it crosses more than once.
• No because it is not a straight line.
• Yes because it looks like an S.

Is this table a function?  Explain.

• Yes, because none of the inputs repeat.
• Yes, because the inputs repeat but have the same output
• No because the inputs repeat
• No because the inputs repeat and have different outputs

Is the graph a function?  Explain.

• Yes, because if I draw a vertical line, it only crosses once.
• No because if I draw a vertical line, it crosses more than once
• Yes because it does not go into the negative numbers
• No because it's not a straight line

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

What is the domain of this function? 

• All real numbers (because graphs never end)
• All the numbers between -2 and 2
• All the numbers except between -2 and 2
• All real numbers above -2

What is the domain of this function?

• All real numbers
• All real number bigger than 0
• All real number bigger than or equal to 0
• All real numbers less than 0

What is the domain of the function?

• All real numbers
• All real numbers greater than -3
• All real number less than -3
• All real numbers except -3

Consider the function f(x)=9x+5.  Find f(7).

• 102
• 68
• 7
• 21

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2