Quadratic Function Forms

Standard Form = ​ (a)   Factored Form = ​ (b)   Vertex Form = ​ (c)  

Which graph below matches up with the equation:

y = -⅕(x+6)(x+1)

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Tags

CCSS.HSF-IF.C.7A

• 1

• 3

• 2

• 5

How do you know if a parabola has a minimum vertex?

• When a is positive there is a minimum

• When a is negative there is a minimum

• When all the numbers in the equation are negative there is a minimum

• When all the numbers in the equation are positive there is a minimum

Tags

CCSS.HSF-IF.C.7A

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

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

Tags

CCSS.HSF-IF.C.7A

Without using a graphing calculator:  What direction is the following equation opening?
y=-3x²-7x+8

• Up

• Down

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry for the following function?
y=-x²-8x+9

• x=2

• x=-4

• x=4

• x=-8

y = (x-12)(x-2)

• (0, 12) and (0, 2)

• (-12, 0) and (-2, 0)

• (12, 0) and (2, 0)

• (0, -12) and (0, -2)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Joe Mauer hits a fly ball.  You can track the height of the ball using the equation:   h(t) = -16t² + 140t + 2  
b. What was the starting height of the ball?    (include units)                                                                                              

• -16 feet

• 140 feet

• 2 feet

• 0 feet