Ejercicios de algebra

Ejercicios de asignación.

Pag. 150 (9-18 impares)
Graph each equation by solving the ecuation for Y, selecting three values forX, and finding the corresponding values for Y.

9. 2y = 2x + 4

11. -2x + 4y = 8

13. 8y – 16x = 24

15. 2y – 50 = 100x17. 5x – 2y = -7

Pag. 150(25-35 impares)
Graph each equation using X and Y intercepts.

25. y = 8x + 4

27. y = 2x + 329. y = 4x – 8

31. 4x = 3y – 9

33. 30x + 25y = 50

35. 0.25x + 0.50y = 1.00

Pag. 166 (1-12 impares)
Find the slope of thethrough the given points. If the slope of the line is undefined, so state.

1.(1, 5) and (2, -3)

3. (5, 2) and (1, 4)

5. (-1,4) and (0, 3)

7. (4, 2) and (4, -1)

9. (-3, 4) and (-1, -6)

11. (-2, 3) and (7, -3)

Pag.167 (29 – 34 impares)
Write eachequation in slope – intercept form (if not given in that form). Determine the slope and the Y intercept and use them to draw thegraph of the linear equation.

29. y = -x + 2

31. 20x – 30y = 60

33. -50x + 20y = 40

Pag.167 (53-60 impares)
Use the point –slope form to find the equation of a line with the properties given. Then write the equation in the slope – intercept form.

53.Slope = 4, through (2, 3)

55. Slope = -2, through (-4, 5)

57. Slope = ½, through (-1, -5)

59. Slope = -2/3, through (-1, -2)