Graphing Quadratics in Standard Form

What is the shape of the graph of a quadratic equation?

• Circle

• Parabola

• Ellipse

• Hyperbola

How is the axis of symmetry in a parabola calculated?

• x = 2a / b

• x = -b / 2a

• x = b / 2a

• x = -2a / b

What is the x-value of the vertex in the standard form of a quadratic?

• b / 2a

• 2a / b

• -b / 2a

• -2a / b

When graphing, how many points are ideal to shape a well-defined parabola?

• Nine

• Five

• Seven

• Three

What does a positive 'a' value indicate about the direction of a parabola?

• Opens upwards

• Opens to the left

• Opens downwards

• Opens to the right

What is the domain of any parabola?

• 1 to Infinity

• -Infinity to Infinity

• -1 to 1

• 0 to Infinity

How do you find the y-intercept in the standard form of a quadratic?

• Set y = 0 and solve for x

• Set x = 0 and solve for y

• Set b = 0 and solve for y

• Set a = 0 and solve for y

What method can be used to convert a quadratic from standard form to vertex form?

• Quadratic formula

• Completing the square

• Factoring

• Division method

What is the vertex form of a quadratic equation?

• y = ax^2 - bx - c

• y = ax^2 + bx + c

• y = a(x - h)^2 + k

• y = a(x + h)^2 + k

If the coefficient 'a' in the standard form is 1/3, what is 'a' in the vertex form?

• 3

• 1/3

• -1/3

• 0