Evaluate Functions in Multiple Representations

Which equation matches the table? 

• y = x + 4

• y = 5x

• y = x - 4

• y = x + 16

Zara made an initial deposit to a bank account and then added a fixed amount every week. The table shows the money in her account. Which equation represents the situation?

• y = 30x + 100

• y = 20x + 120

• y = 120x + 120

• y = 50x + 100

Is the relation a function?

• Function

• Not a Function

Is the graph a function?

• Function

• Not a Function

Is the relation a function?

• Function

• Not a Function

Which equation represents the line graphed?

• y = -x + 18 

• y = x + 18

• y = -2x + 18

• y = -18x + 9 

What is the range of the following graph?

• -5, -1,  0 , 1, 5

• -4, -2, 0, 3, 6

• (-4, 1)  ( 6, 0)

• (6, 0)

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.

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}

• {1, 2, 3, 4, 5}
• {-1, 1, 2, 3}
• {1, 2, 3, 5}
• [1, 5]