Characteristics of Quadratic Functions

What is the vertex of the parabola: y=2(x-3)²+4

• (3,4)
• (-3,4)
• (3, -4)
• (-3,-4)

Find the vertex of 
f(x) = -x² - 4x + 12

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

How do you find the vertex?

y = ax² + bx + c

• x = -b/(2a) and plug back in for y

• x = b/(2a) and plug back in for y

• x = -b/a and plug back in for y

• x = b/a and plug back in for y

What is the vertex?

y = 2x² + 12x + 5

• (6,149)

• (-3,-13)

• (3, 59)

• (-6,5)

What is the vertex?

y = 4(x - 7)² - 8

• (7,8)

• (7,-8)

• (-7,8)

• (-7,-8)

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

What is the y intercept for the equation:
y = -8x² + 3x - 7

• (0, -8)
• (0, 3)
• (-8, -7)
• (0, -7)

Tags

CCSS.HSF-IF.C.7A

Identify the vertex and whether the graph opens up or down.

• (5, 2); opens up
• (5, 2); opens down
• (-5, 2); opens up
• (-5, 2); opens down

For f(x)=a(x-5)(x-4), what are the coordinates of the x-intercepts?

• (-5,0) and (-4,0)

• (4,0) and (-5,0)

• (5,0) and (-4,0)

• (5,0) and (4,0)

Tags

CCSS.HSF-IF.C.7C

Find the axis of symmetry of f(x) = -(x + 2)(x - 4)

• y = 1

• x = 1

• y = -1

• x = -1