Graph of linear equations
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The document discusses linear equations and their graphs. It provides examples of calculating y-values for given x-values using equations of the form y=mx+b. It also calculates the slope and y-intercept of lines from their equations. The x- and y-intercepts of lines are identified by setting x and y equal to 0 in their equations.
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Graph of linear equations
- 1. by: Raymund T. de la Cruz
- 3. If x = 0 y= 2(0) + 1 y = 1 If x = 1 y= 2(1) + 1 y = 3
- 5. x - intercept y - intercepty = 0 or (a, 0) x = 0 or (0, b) If x = 0 y= 2(0) - 2 y = -2 If y = 0 0 = 2x - 2 2 = 2x 1 = x x = 1
- 6. 2 64-2-6 -4 2 6 4 -2 -6 -4 x - intercept y - intercept
- 7. m = 2 3 rise = 2 run = 3 b = −2
- 8. 2 64-2-6 -4 2 6 4 -2 -6 -4 m = 2 3 b = −2
- 9. m = - 3 2 rise = −3 run = 2 If x = 2 y= - 3 2 (2) + 1 y = -3 + 1 y = -2 (2, -2)
- 10. 2 64-2-6 -4 2 6 4 -2 -6 -4 m = - 3 2 (2, -2)