Quiz day 2

The table represents the different prices for renting an Airbnb. Let x equal number of people and let y equal cost. Which linear equation represents this situation?

• y=50x+250

• y=4x+250

• y=250x+4

• y=50x+50

The table shows the number of text messages sent and received in billions over time. The data can be modeled by a quadratic function.

Which function best models the data?

The table represents some points on the graph of an exponential function.

Which function represents this relationship? (HINT: Match answer choices)

What is the range of the following relation:
(9, -2) (4, 3)  ( 8, 10) ( -4, 8)

• -4, 4, 8, 9
• -2, 3, 8, 10
• (9, -2) ( 4, 3)
• (8, 10) (-4, 8)

What is the DOMAIN of this graph? (a)  

• -4 ≤ x ≤ 3
• -1 ≤ x ≤ 4
• 4 < x < 3
• -1 < x < 4

What is the Domain?

• -3 < x ≤ 3

• -4 ≤ x < 5

• -4 ≤ y ≤ 5

• -3 < y ≤ 3

What is the range?

• {-3, -1, 2, 4}
• {0, 4, 7} 
• {0, 4, 4, 7}
• {7, 4, 0}

• Domain: All real numbers greater than or equal to 0 and less than or equal to 100

  Range: All real numbers greater than or equal to 0 and less than or equal to 50

• Domain: {−2}

  Range: {100}

• Domain: All real numbers greater than or equal to 0 and less than or equal to 50

  Range: All real numbers greater than or equal to 0 and less than or equal to 100

• Domain: {100}

  Range: {−2}

• A

• B

• C

• D