alg1 7.7 slope-intercept form

Download Alg1 7.7 Slope-Intercept Form

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  • 1. Algebra 1 Lesson 7.7 Slope-Intercept Form
  • 2. How would you... describe these dogs?
  • 3. How would you... Describe these drinks? Iced caramel macchiato Mocha coconut frappuccino
  • 4. How would you... Describe these cubes? 8 3 8 8 3 3
  • 5. How would you... Describe these lines? y y 10 9 -1 2 1 -2 3 2 -3 4 3 -4 5 4 -5 6 5 -6 7 6 -7 8 7 -8 9 8 -10 -9 10 1 -1 1 2 3 4 5 6 7 8 9 10 x -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 -1 1 -2 -2 -3 -3 -4 -4 -5 -5 -6 -6 -7 -7 -8 -8 -9 -9 -10 -10 2 3 4 5 6 7 8 9 10 x
  • 6. Graphing y 10 To describe a line, we identify the SLOPE and Y-INTERCEPT 9 8 7 6 5 4 3 2 1 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 -1 1 -2 -3 -4 -5 -6 -7 -8 -9 -10 2 3 4 5 6 7 8 9 10 x Formula: y = mx + b
  • 7. slope y-intercept y = mx + b 1) 7x - 4 y=8 2) y = 5x - 2 3) 2x y= 8
  • 8. slope y-intercept y = mx + b Graph this line: 5x-2 y= 3
  • 9. slope y-intercept y = mx + b Graph this line: 2x + 3 y=5
  • 10. #1 slope y-intercept y = mx + b Graph this line: 1x-1 y= 4
  • 11. #2 slope y-intercept y = mx + b Graph this line: y=-x+2
  • 12. #3 slope y-intercept y = mx + b Graph this line: y=x+1
  • 13. #4 slope y-intercept y = mx + b Graph this line: 4x-4 y= 3
  • 14. #6 slope y-intercept y = mx + b Graph this line: y=4
  • 15. Transforming between standard and slope-intercept form Standard Form Ax + By = C Simplified... x+y=# -2x + y = 4 vs. Slope-Intercept Form y = mx + b Simplified... y=x+#
  • 16. Standard Form Ax + By = C x+y=# -6x + y = 4 Slope-Intercept Form y = mx + c y=x+# y = -9x + 3 -10x + 5y = 15 b