By: Aaron Ramos and Itzel Lazcano. Questions: 1a and 5.

Slides:

Advertisements

Similar presentations

1.5 Scatter Plots and Least Squares Lines

Advertisements

TI Calculator Creating a Scatterplot … Step #1 – Enter the Data

Scatter Plots or Line of Best Fit Clipboard B Objective:To use scatter plots to write a line of best fit. Right click and click advance to advance slides!!

Ch. 6.1: Solve Quadratic Equations by Graphing

Graph: x + y = 5 1. Solve for y. 2. Make an X|Y chart. 3. Graph.

Using TI graphing calculators

Solving Quadratic Equations – Graphing Method This presentation explains how to solve quadratic equations graphically. Note that all non-zero terms have.

Scatter Plots with Your calculator Section 4-6. Page 636#10.

Solving Quadratic Equations – Graphing Method

6.6 Trig Equations & Inequalities in Quadratic Form.

5/16/2015 V. J. Motto 1 Chapter 1: Data Sets and Models V. J. Motto MAT 112 Short Course in Calculus.

Solving Systems of Equations. Graphing There are three methods to solving systems of equations by graphing: 1)Write both equations in slope – intercept.

Calculator Shortcut – Solving Trinomials

EXAMPLE 3 Approximate a best-fitting line Alternative-fueled Vehicles

Table of Contents Matrices - Calculator Operations The graphing calculator can be used to do a variety of matrix calculations, as shown in the following.

Graphing Scatter Plots and Finding Trend lines

Objectives: 1. To identify quadratic functions and graphs 2. To model data with quadratic functions.

Using the TI-83+ Creating Graphs with Data. Preparing to Graph  Once the calculator is on and you have entered data into your lists, press the “Y=“ button.

Direct and Inverse Variation

10/18/2015 V. J. Motto 1 Chapter 1: Models V. J. Motto MAT 112 Short Course in Calculus Data Sets and the “STAT” Function.

Academy Algebra II 4.2: Building Linear Functions From Data HW: p (3-8 all,18 – by hand,20 – calc) Bring your graphing calculator to class on Monday.

Solving Polynomial Equations – Graphing Method This presentation explains how to solve polynomial equations graphically. The first step is to get the polynomial.

4.5 Direct Variation What is it and how do I know when I see it?

Practice 1.) Solve for y : 4x + 2y = -8 2.) Solve for y: 3x – 5y = 10 3.) Graph the equation: 3x – 2y = 5 x y O

Solving Systems of Equations by Graphing.  I can:  Solve systems of equations by graphing  Determine whether a system of equations is consistent and.

12/5/2015 V. J. Motto 1 Chapter 1: Linear Models V. J. Motto M110 Modeling with Elementary Functions 1.4 Linear Data Sets and “STAT”

EOQ REVIEW #2 Hoops Relations Direct Variation Rate of Change Linear Equations Scatter Plots Q 1 pt. Q 2 pt. Q 3 pt. Q 4 pt. Q 5 pt. Q 1 pt. Q 2 pt.

1 Scatter Plots on the Graphing Calculator. 12/16/ Setting Up Press the Y= key. Be sure there are no equations entered. If there are any equations,

1 Scatter Plots on the Graphing Calculator. 12/16/ Setting Up Press the Y= key. Be sure there are no equations entered. If there are any equations,

Sec. 2-4: Using Linear Models. Scatter Plots 1.Dependent Variable: The variable whose value DEPENDS on another’s value. (y) 2.Independent Variable: The.

When you finish your assessment In 2-3 complete sentences answer each question 1. How is the first unit going for you so far in this class? 2. If you are.

2.5 Using Linear Models P Scatter Plot: graph that relates 2 sets of data by plotting the ordered pairs. Correlation: strength of the relationship.

Yes no = -9= 0 = -4 = -5/6.  Students will learn: ◦ To write an equation for a line of best fit and use it to make predictions. The trend line that.

Regression on the Calculator Hit the “STAT” button and then select edit Enter the data into the lists. The independent data goes in L 1 and the dependent.

ALGEBRA 2 5.8: Curve Fitting With Quadratic Models

 A basic equation is made of three parts, coefficients, variables, and the constants.  The coefficient is the number before the variable  The variable.

Scatterplots and Linear Regressions Unit 8. Warm – up!! As you walk in, please pick up your calculator and begin working on your warm – up! 1. Look at.

Unit 3 Section : Regression Lines on the TI  Step 1: Enter the scatter plot data into L1 and L2  Step 2 : Plot your scatter plot  Remember.

Linear Regression A step-by-step tutorial… Copyright © 2007 College of the Redwoods First edition by Aeron Ives.

Using the Calculator to Graph Scatter Plots. Everything we just learned about Scatter Plots we will now do with the calculator. Plot points Plot points.

5.2 Slope and Direct Variation What you’ll learn: 1.Write and graph direct variation equations. 2.To solve problems involving direct variation.

Section – Solving Systems of Equations Calculator Required.

Do Now Take out your homework.. 7.1: Graphing Linear Systems Objective: Graph linear systems on a graphing calculator HW: 7.1 Practice Quiz on :

8-1/2-2 DIRECT AND INVERSE VARIATION. Direct Variation Equation: y = kx Solve for constant “k” k = y/x As x increases, y increases As x decreases, y decreases.

Regression Math 12. Regression You can use this when the question does not specify that you must solve “algebraically” You can use regression when you.

Scatter Plots on the TI-73 This Power Point is to help guide someone through the following: 1.Create a scatter plot using lists 2.Find the equation for.

Fitting Lines to Data Points: Modeling Linear Functions Chapter 2 Lesson 2.

Solving Absolute Value Equations

Warm Up Practice 6-5 (p. 78) #13, 15, 16, 18, 22, 25, 26, 27, 31 – 36

Matrix Equations Step 1: Write the system as a matrix equation. A three-equation system is shown below. First matrix are the coefficients of all the.

Calculations with Lists

1-A)The graph of the function y =2x is shown below.

Tables and Relations Review

we use a TI-82 to find the equation:

Creating Scatterplots

Solving Systems of Equations

we use a TI-82 to find the equation:

Creating Scatterplots

Tables and Relations Review

Scatter Plots on the Graphing Calculator

1-A)The graph of the function y =2x is shown below.

5-2 Direct Variation.

Sine Waves Part II: Data Analysis.

11/9 -- You need a calculator today!

Sine Waves Part II: Data Analysis.

Tables and Relations Review

Scatter Plots on the Graphing Calculator

Tables and Relations Review

Which graph best describes your excitement for …..

Section 1.3 Modeling with Linear Functions

Presentation transcript:

By: Aaron Ramos and Itzel Lazcano

Questions: 1a and 5

Direct Variation: Question #1(a) The first step in direct variation is to plug in all given values into the equation y=kx.  y-3x=0  Since then equation is not in y=kx form, you must manipulate the equation to get y by itself.  y-3x/-3x=0/-3x  y=0/-3x  y=kx form  once the equation is in y=kx form then you can determine whether y varies directly with x and also determine the constant of variation.  The answer is: Yes and the constant of variation is 3

Linear Modeling: Question #5 The first thing that you will be needing to do this problem is your graphing calculator. Make sure that you have turned on your Plot 1 and Plot 2 so that you will see the graph.  To do this turn your calculator on and follow these steps- a) press [2 nd ] and STAT PLOT b) once on Plot1 press [ENTER] twice. c) repeat for PLOT2 and your set.

Question #5 continued Next up is plugging in numbers to get your graph. To do this click STAT and [ENTER]. After doing this you should see L1 L2 L3 and a column for each. We are only using L1 and L2 so don't worry about the rest. In L1 enter the numbers from “Years since 1960” on your quiz one at a time. In L2 enter the numbers from “Winning time” on your quiz one at a time as well. Then click graph. Once you graph it nothing will appear

Continued Because the numbers are too far up. So click ZOOM, 3 and [Enter] then again ZOOM, 3 and [Enter] then move your cursor to where the points are and zoom in again. Now that you have your graph just sketch it on the quiz. To find the line of best fit click STAT move one space to the right with the arrows and hit number 4. After that press [Enter] and then it should give you a y= a= b= and so you just plug the a= and b= into the y= to get your line of best fit and write the equation on your quiz.

“years since 1960” on your quiz only goes up to 44 representing the year 2004 and you need to find the winning time for To find the winning time for '12 you would use 52 because the years move up by four and when you move up to 48 it would be 2008 and 52 would be Now that you have 52 as your years all you need is to find the time by plugging in 52 for X on your line of best fit equation and your done.