Graphing Quadratics Standard Form

What is the y-intercept?
f(x) = -2x² + 4x - 6

• (0, 6)
• (0, -6)
• (6, 0)
• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

What is the vertex?
f(x) = -x² - 4x + 12.

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

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.APR.B.3

CCSS.HSA.SSE.A.2

The standard form of a quadratic function is

• ax² + bx + c

• a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

If a is negative in the function, which way does the parabola

• up

• down

• left

• right

Tags

CCSS.HSF-IF.C.7A

In order to graph a quadratic equation in standard form, the first two steps are to use the equation _____ to find the axis of symmetry (which is the x coordinate of the vertex), and then you can plug that value back into the equation to find the _____.

• -b/2a, y coordinate of the vertex
• (x-h)^2, y-intercept
  
• (x-r1), solution
• ax^2, vertex

Tags

CCSS.HSF-IF.C.7A

Does this graph open up or down?

 $y=\ -3x^2\ +7x\ +\ 1,000,000$  

• up

• down

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept of the function.

 $y=3x^2-7x+1,000,000$  

• 0

• 3

•  $c=-7$  

•  $c=1,000,000$  

Tags

CCSS.HSF-IF.C.7A

Graph the quadratic.

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A

Graph the quadratic.

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A