What can I expect to make on a test if I do no homework? Homework Strike!!

Slides:

Advertisements

Similar presentations

Y = 1 2 x y = 1 2 x - 1 What happens if we graph a system of equations and the lines are parallel?

Advertisements

5-6 Slope-Intercept Form Warm Up Lesson Presentation Lesson Quiz

Objective: Use slope-intercept form and standard form to graph equations. 2.4 Quick Graphs of Linear Equations.

Graphing Linear Equations In Slope-Intercept Form.

Quick Graphs Using Slope-Intercept Form

4.7 Graphing Lines Using Slope Intercept Form

Slope Intercept Form. Slope Intercept Form of an equation gives you a quick way to graph an equation.

Quick graphs using Intercepts 4.3 Objective 1 – Find the intercepts of the graph of a linear equation Objective 2 – Use intercepts to make a quick graph.

(For help, go to Lessons 1-6 and 2-6.) ALGEBRA 1 LESSON 6-2 Slope-Intercept Form 8-4 Evaluate each expression. 1. 6a + 3 for a = 22. –2x – 5 for x = 3.

Preview Warm Up California Standards Lesson Presentation.

Warm-Up Graph. Then find the slope. 5 minutes 1)y = 3x + 2 2) y = -2x +5.

WRITING AN EQUATION FROM SLOPE INTERCEPT. Slope Intercept Form.

11.6 The Slope Intercept Form

5-3 Slope-Intercept Form Objective: Students will be able to write and graph linear equations in slope-intercept form.

For example: Could you tell that the equations y=2x +1 and y= 2x-7 have no solution? Can you look at a system of linear equations and tell how many solutions.

Materials Reminders. Get out your agenda if you see your name below. You need to come to my room tomorrow. Period 2Period 7.

Graph linear functions EXAMPLE 1 Graph the equation. Compare the graph with the graph of y = x. a.a. y = 2x b.b. y = x + 3 SOLUTION a.a. The graphs of.

Write an equation given the slope and y-intercept EXAMPLE 1 Write an equation of the line shown.

Example 1 Identifying Slopes and y-intercepts Find the slope and y -intercept of the graph of the equation. ANSWER The line has a slope of 1 and a y -intercept.

The slope-intercept form of a linear equation of a non-vertical line is given by: Slope-Intercept Form of a Linear Equation.

Chapter Point slope Form.

Write an equation given two points

Write an equation given the slope and y-intercept EXAMPLE 1 Write an equation of the line shown.

WARM UP Evaluate 1.3x + y for x = 4 and y = 3 2.x² + 7 for x = 7 5 Minutes Remain.

2-4: Writing Linear Equations Using Slope Intercept Form.

What happens if we graph a system of equations and the lines are the same? y = 2(2x+4) y = 4x+8.

3.2 Graphing Functions and Relations

Writing Linear Equations. Do I have m and y-intercept ? If m and y-intercept are given, simply substitute into the slope-intercept equation. Example:

Chapter 5:Write the equation of a line Given a Point and a Slope.

Warm Up #10 1.) Graph 5x + 7y =35 2.) Graph y= 2x -3.

Writing the Equation of a Line

Goal: Write a linear equation..  1. Given the equation of the line 2x – 5y = 15, solve the equation for y and identify the slope of the line.  2. What.

Calculate the Slope. What is the slope-intercept form of any linear equation?

2.4 Essential Questions What is the point-slope form?

2.4 Graphing Linear Equation Sept 12, Y-intercept a point where a graph intersects the y-axis Vocabulary equation written in the form Ax + By =

Warm-up Presentation Lesson Quiz

Predict! 4.6 Fit a Line to Data

2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Slope-Intercept Form Point-Slope.

X and Y Intercepts.

Warm-Up Exercises EXAMPLE 1 Describe the correlation of data Describe the correlation of the data graphed in the scatter plot. a. The scatter plot shows.

Solve each equation for y. 1. 3x + y = 52. y – 2x = x – y = x + 4y = 85. 9y + 3x = 16. 5y – 2x = 4 Clear each equation of decimals x.

Warm Up 1. 4x + 2y = x + 2 = 6y Solve each equation for y. y = –2x Find the slope of the line that contains (5, 3) and (–1, 4). 4. Find the.

Chapter 5:Write the equation of a line Given Slope & y-Intercept.

Chapter 5:Write the equation of a line Given Two Points.

How do you use observed data to predict unobserved data? Hours watching TV Test score.

7.3 – Writing Equations in Slope Intercept Form Objective(s): to write a linear equation in slope-intercept form given the slope and y-intercept Standard(s):

Writing Linear Equations (Slope- Intercept Form).

EXAMPLE 1 Identify slope and y-intercept Identify the slope and y- intercept of the line with the given equation. y = 3x x + y = 22. SOLUTION The.

Quick Graphs Using Slope-Intercept form 4.6 Objective 1 – Graph a linear equation in slope-intercept form.

When an equation is in slope-intercept form: Examples: Identify the slope of the line and the y- intercept for each equation. 1. y = 3x y = ½.

How do you identify extraneous solutions in radical equations? = x + 2.

Slope-Intercept Form of a Linear Equation. Is this a linear equation? 3x + 2y = 6.

The y-intercept and slope-intercept form/ Writing linear equations from graphs. 1/11/15.

Standard Form Equation of a Line Name Feb 29, 2011 Are these equations of the SAME LINE? y = x + 2 x – y = -2.

7.3 Linear Equations and Their Graphs Objective: To graph linear equations using the x and y intercepts To graph horizontal and vertical lines.

What happens if we graph a system of equations and the lines intersect? y = x-1 y = 2x-2.

What is a System of Equations? Use the iPads to find information about:  Uses  Ways to solve  Real-world applications  Types  Vocabulary.

-last section we wrote an equation of a line using its slope and y-intercept -now, you will write an equation of a line.

Use Linear Equations in Slope- Intercept Form Lesson 5.2 OBJ: to write an equation of a line using points on the line.

How do you solve a system of quadratic and linear equations? x 2 +4x-8 =y 3x+5=y.

Holt McDougal Algebra Point-Slope Form Graph a line and write a linear equation using point-slope form. Write a linear equation given two points.

Graphing Lines Using Slope Intercept Form Algebra 1 Glencoe McGraw-HillLinda Stamper.

Recall that the slope-intercept form of a linear equation of a non-vertical line is given by: Graphing Using Slope-Intercept Form.

Writing Equations of Lines in Slope-intercept form.

SLOPE-INTERCEPT FORM Book Sections 4.1/4.2 Essential Question: How can we write and graph equations when using slope- intercept form?

Use a linear model to make a prediction.

Quick Graphs Using Slope-Intercept Form

Quick Graphs of Linear Equations

Objective: To graph lines given their equations.

Warm up 21 1.) Determine the slope and y intercept of the line y=7x ) Determine the slope and the yintercept of the line 7x- 4y=3 3.) Graph y=1/2.

Presentation transcript:

What can I expect to make on a test if I do no homework? Homework Strike!!

In this lesson you will learn how to interpret the equation of a linear model by calculating the y-intercept using the slope-intercept equation.

Let’s Review slope y-intercept (x,y)

Let’s Review A Common Mistake 4=23+b 4=6+b

Let’s Review Core Lesson Homework completed Test score (2,30) (8,90) Find the rate of change (slope) of the line 1 2 Substitute the m, x, & y into the y=mx+b 3 Solve for b.

Let’s Review Core Lesson Homework completed Test score (2,30) (8,90)

Let’s Review Core Lesson I can expect a grade of 10 on my test if I don’t do any homework! I better get started on my homework!

In this lesson you learned how to interpret scatter plots by finding the y-intercept using the slope-intercept equation.

Let’s Review Guided Practice Study Time (min) Response Speed (sec) Find the y-intercept using the slope- intercept equation of the line of best fit.

Let’s Review Extension Activities Find a data table in your local newspaper that compares two pieces of data. Construct a scatter plot using the data found. Informally draw the line of best fit. Find the y-intercept for this data using the slope-intercept equation of a line. Explain what the y-intercept represents within the context of the problem.

Let’s Review Extension Activities Survey 10 people and construct your own scatter plot with the results. Informally draw the line of best fit. Use this line to find the y-intercept for this set of data using the slope intercept equation of the line. State the meaning of this y-intercept within the context of the problem.

Let’s Review Quick Quiz Determine the y-intercept of the line of best fit using the slope- intercept equation of a line. Side length of a square Perimeter of a square

Let’s Review Quick Quiz Find the y-intercept using the slope- intercept equation and line of best fit. What does the y-intercept mean for this graph? Minutes at Lunch Food Remaining (ounces)