Quadratic Functions

Which of the following is the standard form of a quadratic function?

• f(x) = x²

• f(x) = ax² + c

• f(x) = ax² + bx + c

• f(x) = ax + c

The point in which a graph hits the x-axis is know as the _____

• Solution

• x-intercept

• Root

• All answers are correct

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution

• 2 Real Solutions

• Half a Solution

• No Real Solution

What are the roots of the function

f(x)= (x - 2)(x + 3)?

• x = - 2 or x = 3

• x = 2 or x = -3

• The are no real roots

• x = 2 or x = 3

What piece of information does c identify in the following equation?
y=ax²+bx+c

• Zeroes

• Axis of Symmetry

• Direction

• y-intercept

Which form is the equation

y = -3(x-5)²+7 in?

• Standard

• Vertex

• Factored

• None of These

What is the vertex of the quadratic function: y=1/2(x-3)²+8?

• (3,8)

• (-3,-8)

• (-3,8)

• (3,-8)

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

• y = -2

• x = 3

• x = -3

• y = 2

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum