Warm Up 04.15.13 Week 5 Solve if x = 6, and 4: Does x=6 make the answer larger or smaller than x=4?

Slides:

Advertisements

Similar presentations

Lesson 12.1 Inverse Variation pg. 642

Advertisements

Lesson 9-1 Algebra Check Skills You’ll Need 9-4

3.4 – Slope & Direct Variation. Direct Variation:

EXAMPLE 5 Write a joint variation equation The variable z varies jointly with x and y. Also, z = –75 when x = 3 and y = –5. Write an equation that relates.

Direct and Inverse Variation

Write and graph a direct variation equation

CHAPTER 7-1 SOLVING SYSTEM OF EQUATIONS. WARM UP  Graph the following linear functions:  Y = 2x + 2  Y = 1/2x – 3  Y = -x - 1.

3.5 – Solving Systems of Equations in Three Variables.

Warm Up Week 1. Section 10.3 Day 1 I will use inscribed angles to solve problems. Inscribed Angles An angle whose vertex is on a circle and whose.

Objective - To solve problems involving direct and inverse variation. Direct VariationInverse Variation Let x = price Let y = profit/unit Profit Price.

1 Algebra 2: Section 9.1 Inverse and Joint Variation.

SOLUTION Write an inverse variation equation EXAMPLE 5 x–5–34824 y2.44–3–1.5–0.5 Tell whether the table represents inverse variation. If so, write the.

10-1 Inverse Variation 10-2 Rational Functions 10-3 Simplifying Rational Expressions 10-4 Multiplying and Dividing Rational Expressions 10-5 Adding and.

3.6 Solving Absolute Value Equations and Inequalities

 Direct Variation Function – A function that can be modeled with the equation y = kx.

3.7 Absolute value DAY 2. Solve for x----no notes on this slide (just watch). |x| = 5 |x + 2| = 5 x = 5 or x = -5 x + 2 = 5 or x + 2 = -5 x =

Chapter 6 Test Prep 6-3 through 6-5: Solving Quadratic Equations 6-6: Graphing Quadratic Functions Application Problems Choose a section to work on. At.

Solving One Step Equations Notes and Practice Problems.

Direct, Inverse & Joint Variation. Direct Variation The variables x & y vary directly: Direct  Divide BIGGER.

§2.5 Model Direct Variation CA Standard 2.0 Students solve systems of linear equations and inequalities (in two or three variables) by substitution, with.

Direct and Inverse Variations Do now: if 5 boxes of salt costs 15 dollars, how much does 4 boxes cost?

I can write and graph an equation of a direct variation.

Direct Variation 3.6. Direct Variation  Direct Variation is when two variables can be expressed as y=kx where k is a constant and k is not 0.  k is.

Warm Up Solve for y: 1) 2). HW Check 4.7 CORE Time Complete the Puggly Wuggly Worksheet.

Section Direct and Inverse Variation. Lesson Objective: Students will: Formally define and apply inverse and direct variation.

Warm Up Week 2. Section 10.6 Day 1 I will write the equation of a circle. Circle Equation Must know the coordinate of the center and the radius.

Solving Multi-Step Inequalities

Complementary and Supplementary Word Problems

Solve Equations with Rational Coefficients. 1.2x = 36 Check your answer = x Check 1.2x = (30) = 36 ? 36 = 36 ? 120 = -0.24y

X = Y. Direct variation X 1 X = Y 1 Y 2.

Warm Up Solve each equation for y. 1.x = -4y 2.x = 2y x = (y + 3)/3 4.x = -1/3 (y + 1)

11-6 Inverse Variation. Problem 1: Writing an Equation Given a Point.

NOTES 2.3 & 9.1 Direct and Inverse Variation. Direct Variation A function in the form y = kx, where k is not 0 Constant of variation (k) is the coefficient.

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.

Variation Functions Section 5.1. Direct Variation.

Warm Ups Term 4 Week 5. Warm Ups 4/13/15 1.Solve the equation: log x = Find the inverse of the function: f(x) = 2 – x 3.

Direct, Inverse & Joint Variation Section 2.5. Direct Variation 2 variables X & Y show direct variation provided y = kx & k ≠ 0. The constant k is called.

Use Inverse Matrices to Solve Linear Systems

7.6 Solving Radical Equations

3.3 – Solving Systems of Inequalities by Graphing

Review Problems Matrices

Warm-up Solve each equation 4+13= −3+7= 4−13= −3−7=

Solving Systems using Substitution

Warm Up 1/14 Balanced or not? = =

Week 7 Warm Up solve when x = 3 x3 - 2 a) 5 b) -5 c) ±5 d) 25

Inverse & Joint Variation

Warm-Up Solve the system by substitution..

Inverse Variation Chapter 8 Section 8.10.

Solve a system of linear equation in two variables

Direct and Inverse VARIATION Section 8.1.

Solve and Graph: 2

Solving Two-Step Equations

5-2 Direct Variation.

8-5 Variation Functions Recognize and solve direct and joint variation problems. Recognize and solve inverse and combined variation problems.

Warm-Up Solve the system by graphing..

Graphing Systems of Equations Day 2

12.1 Model Inverse Variation

Chapter 5: Graphs & Functions

Warm-Up Solve the system by graphing..

Warm Up #8 Sketch the graphs of: 1.

1.2 Solving Linear Systems by Graphing

Chapter 9 Lesson 3 Pg. 699 Solving Systems of Equations by Graphing

7.6 Solving Radical Equations

Chapter 5: Graphs & Functions

Chapter 9 Lesson 3 Pg. 699 Solving Systems of Equations by Graphing

Direct Variation How else could we have solved for k?

Equations With Two Variables pages

9.1 Inverse & Joint Variation

Presentation transcript:

Warm Up Week 5 Solve if x = 6, and 4: Does x=6 make the answer larger or smaller than x=4?

Section 11.3 Day 1 I will use direct and inverse variation. Direct Variation k ≠ 0

Inverse Variation k ≠ 0

Ex 1 x = 2 and y = 4 Direct VariationInverse Variation 2 2 Write an equation:

Inverse Variation xy Ex 2 Direct Variation y = 2x xy

Ex 3 If x = 2 and y = -6, find y when x = 8 y varies directly with x:

Ex 4 Write an equation that varies inversely :

Assign ment: Handout – 11.3 Day 1 “MUST DO WORD PROBLEMS” Check 1: Does the graph show direct, inverse or no variation? a)b)c)

Re 1 Blue ( )( ) YellowTotal Area (Base) ( 10 )( 17 ) – % 170 – %