Math chapter 8 study

Determining if a sequence is arithmetic or geometric can help you find the pattern. When you know the pattern, you can continue the sequence to find missing items.

A sequence can also be shown in a table. The table gives both the position of each term in the list and the value of the term.

A function is a relation that assigns exactly one output value to one input value.

In a function, the input value is also known as the independent variable, since it can be any number you choose. The value of the output depends upon the input value, so the output depends upon the input value, so the output value is known as the dependent variable.

The input and the output table can be represented as a set of ordered pairs, or a relation. The input represent the x-values and the output represents the y-values.

A sequence is a list of numbers in a specific order. Each number in the list is called a term of the sequence. Arithmetic sequences can be found by adding the same number to the previous term. In a geometric sequence, each term is found by multiplying the previous term by the same number.

You can write an inequality to represent a situation.

Inequalities can be graphed on an a number line. sometimes, it is impossible to show all the the values that made an inequality, it is impossible to show all the values that make an inequality true. The graph helps you see the values that made the inequality true.

An inequality is a mathematical sentence that compares quantities.

Since an inequality uses greater than and less than symbols, one-variable inequalities have infinitely many solution. For example any rational number greater than 4 will make the inequality x > 4 true.

You can also graph a function. If the graph is a line, the function is then called a linear equation. When graphing the function, the input is the x-coordinate and the output is the y-coordinate.

Words and equations can be used to describe functions. For example, when a rate is expressed in words it can be written as an equation with variables. When you write an equation, determine what variables to use to represent different quantities.

A linear function is a function whose graph is a line.

You can use an equation to represent a function. The input, or independent variable, Represent the x-value , and the output, or dependent variable, represents the y-value. An equation expresses the dependent variable in terms of the independent variable.