Quadratic Test Review

# 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

Tags

CCSS.HSF-IF.C.7A

SOLUTIONS are the ZEROS

• 0 and 4

• 2 and 4

• 0

• 2 and 4

10

• 5x² - 10x - 3

  (1, -3)

  y = 1

• 5x² - 10x + 2

  (1, -3)

  x = -3

• 5x² - 10x - 3

  (1, -3)

  y = 3

• 5x² - 10x + 2

  (1, -3)

  x = 1

• (48,0) (0,2)

• (0,48) (2,0)

• When no time has passed Stella is on the top of the 48 foot diving board.

  She lands in the water after 2 seconds.

• Stella is on the top of the 48 foot diving board and lands at 0 feet.

A soccer ball was kicked.

After 1 second it reached a

maximum height of 6 ft.

Write the equation for the path for the ball in vertex form:

y = a (x - h)² + k / a = 3

• y = 6(x - 1)² + 3

• y = 3(x - 2)² + 6

• y = 3(x - 1)² + 6

• y = 3(x - 1)² - 2

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

Identify the 'a' value: y = 16x² -8x -24

• 16
• 8
• -8
• -24

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24