EOC Quick Quiz 1

Which relation is NOT a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}
• {(2,7), (3,7), (4,7), (5,8)}
• {(1,-5), (-1,6), (1,5), (6,-3)}
• {(3,-2), (5,-6), (7,7), (8,8)}

Is this mapping a function or not a function? 

• Function
• Not a Function 

The drawing shows points  ^A,B, and ^C. At what location would you add point ^{D to create a square ?}

• ( 2,1 )
• (4,5)
• ( 5, 4 )
• ( 5, 10 )

Find the perimeter of the figure to the right.  Round to the nearest tenth.

• 20.8 units
• 116 units
• 11.5 units
• 19.8 units

The expression 1350(1.05)^t models the average wages, in dollars, in the US as a function of the number of years since 1930. What does 1.05 represent in this expression?

• The average wages in the US were about $1.05 in 1930.

• The averages wages in the US increase by about 5% each year.

• The average wages double every 1.05 years.

Derek works at Subway making $9.25 an hour.  The function d(x)=9.25x tells us how much money Derek makes after x hours of working.  What is the meaning of d(4)=37?

• After 4 hours of work, Derek makes $37.
• Derek needs $4 more to have $37 total.
• After working for 4 days, Derek makes $37 total.
• After 4 hours of work, Derek now makes $37 an hour instead of $9.25.

A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands on the ground. The graph below shows the height, y, of the ball from the ground after x seconds.

For which interval is the ball's height always decreasing?

Which equation best fits the data in the table?

• y = 15940x - 2423.6

• y = 267.71x² -3494.46 + 16500

• y = 16500(0.80)^x

Kay is knitting blankets for the residents of a local nursing home. She already has 6 blankets completed. After one week, Kay has 8 blankets. After two weeks, Kay has 10 blankets. Kay's scenario is best represented by a _______________ function.

• Linear

• Quadratic

• Exponential

• None of the above

In the first year of an annual 5K run there were 120 participants. In the 2nd and 3rd year of the 5K run, there were 180 and 270 participants respectively. This situation is best modeled by a(n) ________________ function.

• Linear

• Quadratic

• Exponential

• None of the above