2. WARM UP SOLVING EQUATIIONS Solve the equation. (lesson 3.3) 1.4x – 11 = -31 2.20x = 3x + 17 3.12x + 10 = 2x + 5 4.3x + 10 = 5x - 7 5 Minutes Remain

3. WARM UP SOLVING EQUATIIONS Solve the equation. (lesson 3.3) 1.4x – 11 = -31 2.20x = 3x + 17 3.12x + 10 = 2x + 5 4.3x + 10 = 5x - 7 4

4. WARM UP SOLVING EQUATIIONS Solve the equation. (lesson 3.3) 1.4x – 11 = -31 2.20x = 3x + 17 3.12x + 10 = 2x + 5 4.3x + 10 = 5x - 7 3

5. WARM UP SOLVING EQUATIIONS Solve the equation. (lesson 3.3) 1.4x – 11 = -31 2.20x = 3x + 17 3.12x + 10 = 2x + 5 4.3x + 10 = 5x - 7 2

6. WARM UP SOLVING EQUATIIONS Solve the equation. (lesson 3.3) 1.4x – 11 = -31 2.20x = 3x + 17 3.12x + 10 = 2x + 5 4.3x + 10 = 5x - 7 1

7. SOLVING EQUATIIONS Solve the equation. (lesson 3.3) 1.4x – 11 = -31 2.20x = 3x + 17 3.12x + 10 = 2x + 5 4.3x + 10 = 5x - 7 WARM UP 0

8. 5.4 Standard Form Today’s Schedule: Lesson 5.4 Powerpoint Lesson 5.4 Powerpoint In class assignment/homework In class assignment/homework GOAL: Write an equation of a line in standard form. KEY WORDS Standard form Slope-intercept form Point-slope form Integer coefficient

9. 5.4 Standard Form STANDARD FORM The STANDARD FORM of an equation of a line is: Ax + By = C Where A and B are integers (not fractions) and not both zero.

10. 5.4 Standard Form EXAMPLE 1

11. 5.4 Standard Form

12. EXAMPLE 2 Write an Equation in Standard Form Write in standard form an equation of the line passing through (-4, 3) with a slope of -2. Use integer coefficients. 1.Write the point slope formy – y 1 = m(x – x 1 ) 2.Substitute -2 for m, and -4 for x 1, and 3 for y 1. 3.Simplify the equation 4.Use the distributive property 5.Add 3 to each side. (Slope-intercept form) 6.Add 2x to each side. (Standard form)

13. 5.4 Standard Form PRACTICE Write in standard for an equation of the line passing through (3, -5) with a slope of -3. Use integer coefficients.

14. 5.4 Standard Form YOUR TURN Page 294 1-8 and 15-29