Unit 8 Quadratic Functions (Parabolas) Review

The graph of which quadratic funtion has vertex (4, -3) and passes through the point (6, 1)? *Hint: Use graph trace and/or the table on the calculator!

• y= -x² + 8x - 19

• y= x² - 8x +13

• y= x² - 12x +37

• y= -x² + 12x - 35

Solve     2x² - 32 = 0

• -16 or 16
• -4 or 4
• No Solution
• -8 or 8

y=2x²-6x+1 is in what form?

• Vertex
• Intercept
• Standard
• Focus/ directrix

y=3(x-4)²-8 is in what form?

• Standard
• Intercept
• Focus/directrix
• Vertex

What is the axis of symmetry for the following quadratic function:
f(x)=1/2(x-4)²+3

• x=4
• x=-4
• x=1/2
• x=3

What direction does the parabola open?

• Up
• Down
• Left
• Right

Factor the equation 
s² + 7s +10

• ( s + 5) ( s + 2)
• ( s + 10) ( s + 7)
• ( s + 10) ( s - 1)
• ( s - 5) ( s -2)

Identify the vertex
g(x) = (x + 14)² - 8.

• ( -14 , -8)
• ( -14 , 8)
• ( 14 , -8)
• ( 14 , 8)

What is the maximum or minimum of
g(x) = -9x² + 6x -1?

• minimum at ( ⅓ , 0)
• maximum at ( ⅓ , 0)
• minimum at ( 3 , 0)
• maximum at ( 3 , 0)

What is the correct quadratic function for this parabola?

• f(x) = (x - 2) (x - 3)

• f(x) = (x + 2) (x - 3)

• f(x) = (x - 2) (x + 3)

• f(x) = (x + 2) (x + 3)