Algebra: Concepts and Connections EOC Review 1

Front

What is the sum of a rational number and an irrational number?

Back

The sum of a rational number (a) and an irrational number (b) is irrational.

Front

What expression represents the cost of a newsletter subscription that increases by 10% each year?

Back

Front

What is the expected cost of a $20 newsletter subscription after 3 years with a 10% increase each year?

Back

The expected cost is approximately $26.62.

Front

What inequality models the total value of d dimes and q quarters being less than $14.75?

Back

Front

How do you determine if two lines represented by equations are parallel, perpendicular, or intersecting?

Back

Two lines are parallel if their slopes are equal, perpendicular if the product of their slopes is -1, and intersecting if neither condition is met.

Front

What is the definition of a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation is non-repeating and non-terminating.

Front

What does it mean for data to be skewed right?

Back

Data is skewed right when the tail on the right side of the distribution is longer or fatter than the left side.

Front

What is the median of a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What is the mean of a data set?

Back

The mean is the average of a data set, calculated by dividing the sum of all values by the number of values.