Intro to Quadratics CP

Which letter determines if a parabola opens up or down?

• a

• b

• c

Tags

CCSS.HSF-IF.C.7A

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

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

• x = -4
• x = 4
• y = 4
• (4,-1)

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

• (-2, 16)
• (2, 0)
• (2, 4)

• (-2, 24)

Find the vertex of f(x)= -2x²-16x+3.

• (4, -93)
• (-4, 35)
• (-4,25)

• x = -4

What is the vertex?

• (-2,0)

• (0,0)

• (0,-4)

• (2,0)

Select the answer that has a, b, and c correctly labeled:

 $y=-x^2+2x-9$  

• a= 1, b= 2, c= -9

• a= 2, b= -1, c= 9

• a= -9, b= 2, c= -1

• a= -1, b= 2, c= -9

Which direction will this parabola open?

 $y=2x^2+8x-16$  

• upwards

• downwards

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?

• (-1,8)

• (8,-1)

• (0,6)

• (6,0)

Tags

CCSS.HSF-IF.C.7A