Solving Quadratics

.How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.HSF-IF.C.7A

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive
• Maximum value, because the b value is positive
• Maximum value, because the a value is positive
• Minimum value, because the c value is negative

What is the y intercept for the equation:
y = -8x² + 3x - 7

• (0, -8)
• (0, 3)
• (-8, -7)
• (0, -7)

Tags

CCSS.HSF-IF.C.7A

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Find the vertex of the quadratic: y = x² – 8x + 12

• (3,-3)

• (4,-4)

• (-4,4)

• (-4, 60)

What is the vertex of this quadratic?

• (4,0)
• (0,0)
• (2,-4)
• (-4,2)

What is the domain for all quadratics?

• all real numbers
• x > 0
• 0
• x < 0

The graph of a quadratic function is called a

• line
• curve
• u
• parabola

Tags

CCSS.HSF-IF.C.7A

What's the domain and range? 

• D: All Real Numbers 
  R: 6 & all numbers less than 6. 
• D: 6 & all numbers less than 6. 
  R: All Real Numbers
• D: All Real Numbers
  R: 6 & all numbers greater than 6
• D: 6 & all numbers greater than 6.
  R: All Real Numbers

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

• up
• down
• both 
• neither

Tags

CCSS.HSF-IF.C.7A