Vertex Form Review

The coefficient "a" in vertex form controls what?
y=a(x-h)²+k

• Width and Opening Up or Down
• Width Only
• Vertical Shift
• Horizontal Shift

Which of the following parabolas is the widest?

• y=-0.5x²

• y=x²

• y=2x²

• y=-3x²

Which of the following parabolas is the narrowest?

• y=-0.5x²

• y=x²

• y=2x²

• y=-3x²

The coefficient "h" in vertex form controls what?
y=a(x-h)²+k

• Width and Opening Up or Down
• Width Only
• Vertical Shift
• Horizontal Shift

The coefficient "k" in vertex form controls what?
y=a(x-h)²+k

• Width and Opening Up or Down
• Width Only
• Vertical Shift
• Horizontal Shift

Which of the following parabolas is shifted UP the most?

• y=2(x-3)²+7

• y=2(x+3)²-7

• y=5(x-2)²+3

• y=5(x+2)²-3

Where is the vertex of the following equation:
y=3(x-2)²+5

• (2,5)
• (-2,5)
• (2,-5)
• (3,5)

What is the vertex of the following equation?

y=(x+3)²+2

• (-3,2)

• (-3,-2)

• (3,2)

• (3,-2)

Which of the following is concave DOWN?

• y=x²
• y=-x²
• y=(x-1)²
• y=x²-1

Tags

CCSS.HSF-IF.C.7A

Where is the vertex of an equation in vertex form?
y=a(x-h)²+k

• (-h,k)
• (h,k)
• (k,h)
• (a,h)