Graphing Quadratics in Standard Form

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

What is a axis of symmetry?

• all real numbers

• y=5

• the line that divides the graph in equal halves

• y=mx+b

Identify a, b, and c if y = -8+3x²+5x

• a=3, b=5, c=-8

• a=-8, b=3, c=5

• a=3x², b=5x, c=-8

• a=3x² , b=-8, c=5x

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What do we call the highest or lowest point of a quadratic?

• parabola
• vertex
• graph
• point

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

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

Graph the quadratic.

• A
• B
• C
• D

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Graph the following equation:

y=x²-2x-3

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The axis of symmetry line passes through which point?

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