Alg. 1- Unit 6 REVIEW

Which graph is a parabola?

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If the a value is positive in the equation of y = ax² + c, which direction does the graph open?

• up

• down

• left

• right

If the a value is negative in the equation y = ax² + c , which direction does the parabola open?

• up

• down

• left

• right

What is the y-intercept of the parabola?

• -4

• 4

• -3

• 0

What is the vertex of this quadratic equation?  
y = 2(x - 2)²  +  5

• (-2,5)
• (2,5)
• (5,-2)
• (-5,-2)

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

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

• y = -2
• x = 3
• x = -3
• y = 2

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Identify the vertex

• (-1,-9)
• (0,-8)
• (-4,0)
• (0,0)

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2