Solving Quadratics Test

# 3 (y = x² + 2x - 3)

• a) -3 and 1 b) (0, -3) c) (-1, -4) e) Min

  f) x = -1

  g) D: All Real #’s

  R: y ≥ - 4

• a) -3 and 1 b) (0, -3) c) (-1 , -4 ) e) Min

  f) x = - 4

  g) D: All Real #’s

  R: y ≥ -1

• a) -3 and 0 b) (-1, -3)

  c) (-1 , -4 ) e) Min

  f) x = -1

  g) D: All Real #’s

  R: y ≥ -4

• a) - 3 and 1 b) (0, -3) c) (-1 , -4 ) e) Min

  f) x = -1

  g) D: y ≥ - 4

  R: All Real #’s

SOLUTIONS are the ZEROS

• 0 and 4

• 2 and 4

• 0

• 2 and 4

Solve
a² + 2a - 24 = 0

• a = -6, 4
• a = 6, -4
• a = 12, -2
• a = 8, -3

Solve by factoring:  4x² + 11x - 3 = 0

• x = -3/4 and x = -1
• x = 4 and x = 3
• x = 1/4 and x = -3
• x = -1/4 and x = 3

Factor
k²+7x+10

• (k+2)(k+5)
• (k-2)(k-5)
• (k+10)(k+4)
• (k+2)(k-5)

Solve the following equation by completing the square:
n² = 18n + 40

• {11 and -11}
• {16 and 2}
• {20 and -2}
• {10 and -4}

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Another word for x-intercepts?

• Range
• Zeros
• Y-Values
• Form

The roots of the graph are?

• 4 and -2

• -4 and -2

• -4 and 2

Find the zeros of the function x² – 4x - 5.

• x = 5, x = 1

• x = -5 , x = -1

• x= 5, x =-1