Graphing parabolas

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

If we have the equation y=ax²+bx+c, how can we can find the x-coordinate of the vertex?

• -a
• -b/a
• b/2a
• -b/2a

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept of the following equation?
y=x²-3x-4

• y=1
• y=-4
• y=3
• y=-3

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry for the equation f(x) = 3x² - 18x + 23

• x = -3

• x = 9

• x = 3

• x = -9

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

• up
• down

Tags

CCSS.HSF-IF.C.7A

Which of the following parabolas will have a minimum?

• y = -x² + 4
• y = -x² + x - 3
• y = -x² - 2
• y = x² + 2x - 8

Tags

CCSS.HSF-IF.C.7A

Which of the following parabolas will have a minimum?

• y = -x² + 4
• y = -x² + x - 3
• y = -x² - 2
• y = x² + 2x - 8

Tags

CCSS.HSF-IF.C.7A