9th Grade Final Exam

Front

What is the explicit formula for the arithmetic sequence: 2, 8, 14, ...?

Back

y = 2 + 6x

Front

How can you determine if a table represents a function?

Back

A table is not a function if any x-value is repeated with different y-values.

Front

Solve the system of linear equations: 5x - 3y = -36 and 2x + 3y = 15.

Back

(-3, 7)

Front

What is the value of f when x equals 4 in the function f(x) = 3x - 9?

Back

3

Front

Find the next three terms in the arithmetic sequence: -33, -24, -15, -6, ...

Back

3, 12, 21

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 for the nth term of an arithmetic sequence?

Back

a_n = a_1 + (n-1)d, where a_1 is the first term and d is the common difference.

Front

What does it mean for a relation to be a function?

Back

A relation is a function if each input (x-value) has exactly one output (y-value).

Front

How do you find the slope of a line given two points?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are integers.