Quadratics Hwk 10-11

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

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

The axis of symmetry of this parabola is...

• y=4
• y=-4
• x=4
• x=-4

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down
• both 
• neither

How did we transform from the parent function?
y = x² + 2

• horizontal shift up
• vertical shift up
• horizontal shift down
• vertical shift down

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

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

What are the x- intercepts?

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

Find the y-intercept of f(x) = 2x²-2x + 1

• 2
• -2
• 1
• -1

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

• y = -2
• x = 3
• x = -3
• y = 2