Algebra Regents Practice.

The expression x⁴ - 16 is equivalent to

Tags

CCSS.HSA.APR.C.4

An expression of the fifth degree is written with a leading coefficient of seven and a constant of six. Which expression is correctly written for these conditions?

The table shows the year and the number of households in a building that had high-speed broadband internet access.

For which interval of time was the average rate of change the smallest?

• 2002-2004

• 2003-2005

• 2004-2006

• 2005-2007

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The scatterplot below compares the number of bags of popcorn and the number of sodas sold at each performance of the circus over one week.

Which conclusion can be drawn from the scatterplot?

• There is a negative correlation between popcorn sales and soda sales.

• There is a positive correlation between popcorn sales and soda sales.

• There is no correlation between popcorn sales and soda sales.

• Buying popcorn causes people to buy soda.

Tags

CCSS.HSF.LE.B.5

The Celluloid Cinema sold 150 tickets to a movie. Some of these were child tickets and the rest were adult tickets. A child ticket cost $7.75 and an adult ticket cost $10.25. If the cinema sold $1470 worth of tickets, which system of equations could be used to determine how many adult tickets, a, and how many child tickets, c, were sold?

• a+c=150

  10.25a+7.75c=1470

• a+c=1470

  10.25a+7.75c=150

• a+c=150

  7.75a+10.25c=1470

• a+c=1470

  7.75a+10.25c=150

Tags

CCSS.HSA.CED.A.3

The tables below show the values of four different functions for given values of x.

Which table represents a linear function?

• f(x)

• g(x)

• h(x)

• k(x)

Tags

CCSS.8.F.A.3

The acidity in a swimming pool is considered normal if the average of three pH readings, p, is defined such that 7.0<p<7.8. If the first two readings are 7.2 and 7.6, which value for the third reading will result in an overall rating of normal?

• 6.2

• 7.3

• 8.6

• 8.8

Dan took 12.5 seconds to run the 100-meter dash. He calculated the time to be approximately

• 0.2083 minute

• 750 minutes

• 0.2083 hour

• 0.52083 hour

Tags

CCSS.8.EE.B.5

Tags

CCSS.6.EE.A.3