Quadratic Roots, Zeros

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

Factor: x²+16x+64
WHAT TWO NUMBERS MULTIPLY TO 64
AND ADD UP TO 16? 

• (x+8)(x+8)

• (x+2)(x+32)

Which equation below is a quadratic?

• y=9x+5

• y=3x²-6

• y=5x³+6

• x=3^x

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Another name for the x-intercept

• Roots

• Zeros

• Solutions

• All of the above

Tags

CCSS.HSF-IF.C.7C

Write the function rule in standard form for the following function.

Write a quadratic equation that opens downward and has roots x= - 2 and x=6.

• -x²+4x+12

• x²+4x-12

• x²-4x-12

• -x²-4x+12

Write a quadratic function for this graph.
*if you cannot see, the parabola touches the x-axis at 5*

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

Tags

CCSS.HSF-IF.C.7A

4 and 2
-4 and -2
4 and -2
-4 and 2

• 4 and 2

• -4 and -2

• 4 and -2

• -4 and 2