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WARM UP

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

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WARM UP

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

  2. WARM UP 4 Evaluate 3x + y for x = 4 and y = 3 x² + 7 for x = 7

  3. WARM UP 3 Evaluate 3x + y for x = 4 and y = 3 x² + 7 for x = 7

  4. WARM UP 2 Evaluate 3x + y for x = 4 and y = 3 x² + 7 for x = 7

  5. WARM UP 1 Evaluate 3x + y for x = 4 and y = 3 x² + 7 for x = 7

  6. WARM UP 0 Evaluate 3x + y for x = 4 and y = 3 x² + 7 for x = 7

  7. 4.7 Graphing Lines Using Slope-Intercept Form SLOPE-INTERCEPT FORM OF THE EQUATION OF A LINE The linear equation y = mx + b is written in slope-intercept form, where m is the slope and b is the y-intercept. y = mx + b y-intercept slope

  8. 4.7 Graphing Lines Using Slope-Intercept Form EXAMPLE 1Graph an Equation in Slope-Intercept Form Graph the equation y = 2x + 1 1 Find the slope and the y-intercpet.

  9. 4.7 Graphing Lines Using Slope-Intercept Form EXAMPLE 1Graph an Equation in Slope-Intercept Form Graph the equation y = 2x + 1 2 Plot the point (0,b) when b is 1.

  10. 4.7 Graphing Lines Using Slope-Intercept Form EXAMPLE 1Graph an Equation in Slope-Intercept Form Graph the equation y = 2x + 1 2 1 rise run Move 2 units up Move 1 unit right 3 Use the slope to locate a second point on the line. m = = =

  11. 4.7 Graphing Lines Using Slope-Intercept Form EXAMPLE 1Graph an Equation in Slope-Intercept Form Graph the equation y = -3x + 2 4 Draw a line through the two points.

  12. 4.7 Graphing Lines Using Slope-Intercept Form Practice # 1: Graph y = 5x - 3

  13. 4.7 Graphing Lines Using Slope-Intercept Form Practice # 2: Graph y = x + 3

  14. 4.7 Graphing Lines Using Slope-Intercept Form Practice # 3: Graph y = x + 6 1 2

  15. GRAPH THESE EQUATIONS y = x + 5 Y = 2x - 4 Y = -2x + 3 Y = x – 4 Y = -x – 3 Y = - x + 2 Y = 7x + 1 Y = 3x + 8 Y = - x + 2 Y = x - 5 4 3 2 3 1 2

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