Problem Set 3

  1. The Graph Of y = |x|. d)
  2. More Graph Of y = |x|.

    When x\le 0,then y=-x

    When x\ge 0,then y=x

  3. More Areas!

    5 meters by 5 meters

    12 squares by 9 squares

  4. Particular Points on Parabolas.

    a) x-intercepts: (-1,0) (-5,0)

    y-intercept: (0,5)

    b) x-intercepts: (-1,0) (4,0)

    y-intercept: (0,8)

    c) x-intercepts: (-14,0) (0,0)

    y-intercept: (0,0)

  5. Factoring. a) -2,2 b) -6,1 c) 2
  6. Kite Flying. 4 feet by 7 feet
  7. Absolute Value. a) 5 b) 5 c) 2 d) 8
  8. Absolutely x. a) (-4,14) b) (-\infty ,-6)\cup(0,\infty) c) [1,2] d) (-\infty ,17)\cup(25,\infty)
  9. Playing with Parabolas.

    d

    a

    b

    c

  10. Complete Factoring I. a) c^2-29 b) x(x-2)(x^2+2x+4) c) (z-1)(z^3+2) d) (x-3)(x-3)
  11. Complete Factoring II. a) (\frac{1}{x^2}-3)(\frac{1}{x^2}+3) b) x^2-8x-8 c) -(x-3)(x+7) d) 4(x^2+1)(x-2)(x-1)(x+1)