Algebra Functions and Graphing

Questions and Answers

How do you put in a table on a graphing calculator?

Stat Edit

How do you find linear regression?

Stat Calculate 4

How do you find a matrix in a calculator?

2nd Matrix A

How do you put a matrix in a calculator?

2nd Matrix Edit Signup and view all the answers

X^2 means a graph opens upward.

True Signup and view all the answers

-x^2 means a graph opens downward.

True Signup and view all the answers

When you are given a function it is best to?

plug in the equation and use the graph and table to answer the problems. Signup and view all the answers

How do you use regression to find an equation?

Plug in the table given and then go to linear regression to find the equation. Signup and view all the answers

What is the Quadratic Formula?

x=(-b±√(b^2-4ac))/2a Signup and view all the answers

What does it mean to complete the square?

The process of adding a term to a quadratic expression to make it a perfect square trinomial. Signup and view all the answers

What is factoring?

Rewriting an expression as the product of its factors. Signup and view all the answers

What is i^2 equal to?

-1 Signup and view all the answers

When using a system, it is best to?

Change all variables to the same one to simplify, then solve from there. Signup and view all the answers

When creating a matrix, what is the best practice?

Group each equation into a horizontal line and each variable into a vertical line. Signup and view all the answers

Study Notes

Graphing Calculator Functions

To input data into a table, use Stat Edit.
For finding linear regression, navigate to Stat Calculate 4.
Accessing matrices involves pressing 2nd Matrix A to view matrix A.
To enter or edit a matrix, use 2nd Matrix Edit.

Graph Behavior

The expression x^2 indicates that the graph opens upward.
The expression -x^2 indicates that the graph opens downward.

Function Analysis

When provided with a function, it is effective to plug in the equation and utilize both a graph and table for problem-solving.
To derive an equation using regression, input the given table and apply linear regression.

Key Algebra Concepts

The Quadratic Formula is expressed as:
*x = (-b±√(b²-4ac))/(2a)**.
Completing the square involves adding a specific term to a quadratic expression to convert it into a perfect square trinomial.
Factoring refers to rewriting an expression as the product of its factors.

Imaginary Numbers

The value of i² is equal to -1.

Working with Systems of Equations

In a system of equations, it is advisable to change all variables to a common variable for simplification before solving.

Matrix Creation

To create a matrix, organize each equation horizontally and align each variable in vertical columns.

Description

This quiz covers key concepts in algebra, including graphing calculator functions, graph behavior, and function analysis. Prepare to test your understanding of quadratic equations and regression analysis techniques.