Section 2-1 Relations and Functions

What is the domain?

• the set of all x-values

• the set of all y-values

What is the range?

• the set of all x-values

• the set of all y-values

What is the range of the following graph?

• R: {-5, -1, 0 , 1, 5}

• R: {-4, -2, 0, 3, 6}

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

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values

• No, because the vertical line test shows there are repeating input values

Does this mapping diagram represent a function?

• No, because there are repeating input values
• Yes, because there are no repeating input values

Is relation shown a function?

• YES
• NO

Is the relation a function?

• YES
• NO

Is the relation a function? 
{(-6, -1), (5,-1), (0, -1), (-2, -1), (3, -1)}

• Yes
• No

Tags

CCSS.8.F.A.1

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes
• No

Tags

CCSS.8.F.A.1