Graphing Parabolas standard form

Which of the following equations matches standard form of a quadratic? Options: ax + by = c, y = a(x - h)² + k, y = ax² + bx + c, y = mx + b

Equation: y=ax²+bx+c. Find the x-coordinate of the vertex.

Vertex of y=x²+4x+3?

The axis of symmetry line passes through which point?

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

The graph of a quadratic function is called a

Use the graph to determine the solutions.

What are the zeros?

What is the green dashed line called? Options: roots or x-intercepts, parabola, axis of symmetry, y intercept

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