4.4, 4.6, 4.7 Review

Front

What is an arithmetic sequence?

Back

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant.

Front

What is the formula to find the nth term of an arithmetic sequence?

Back

The nth term (a_n) can be found using the formula: a_n = a_1 + (n-1)d, where a_1 is the first term and d is the common difference.

Front

If the first term of an arithmetic sequence is 125 and the common difference is 25, what is the 7th term?

Back

The 7th term is 125 + (7-1) * 25 = 125 + 150 = 275.

Front

What does positive correlation mean in a graph?

Back

Positive correlation means that as one variable increases, the other variable also increases.

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input.

Front

Evaluate the function f(x) = 2x - 7 for f(2).

Back

f(2) = 2(2) - 7 = 4 - 7 = -3.

Front

What are the next two terms in the arithmetic sequence 13, 19, 25?

Back

The next two terms are 31 and 37.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables.

Front

If f(6) = 7, what does this indicate about the function at x = 6?

Back

It indicates that when the input x is 6, the output of the function is 7.

Front

What is the common difference in the arithmetic sequence 125, 150, 175?

Back

The common difference is 25.