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Unit 1 Pre-Assessment - Algebra: Concepts & Connection

Unit 1 Pre-Assessment - Algebra: Concepts & Connection

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an arithmetic sequence?

Back

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

2.

FLASHCARD QUESTION

Front

How do you represent an arithmetic sequence mathematically?

Back

An arithmetic sequence can be represented by the formula a_n = a_1 + (n - 1)d, where a_n is the nth term, a_1 is the first term, n is the term number, and d is the common difference.

3.

FLASHCARD QUESTION

Front

What is the common difference in an arithmetic sequence?

Back

The common difference is the amount added to each term to get to the next term in the sequence.

4.

FLASHCARD QUESTION

Front

If Kara saves $30 each week starting with $50, what is the formula for her savings after n weeks?

Back

a_n = 50 + 30(n - 1) or a_n = 30n + 20.

5.

FLASHCARD QUESTION

Front

What is the domain of a function?

Back

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

6.

FLASHCARD QUESTION

Front

What is a reasonable domain for Sasha's T-shirt sales?

Back

The reasonable domain is all whole numbers, as she cannot sell a negative number of T-shirts.

7.

FLASHCARD QUESTION

Front

What does it mean for a function to be decreasing?

Back

A function is decreasing if, as the input values increase, the output values decrease.

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