This video tutorial covers quadratic functions, including factoring, solving equations, understanding the discriminant, graphing, and rewriting functions in different forms. It provides step-by-step instructions on factoring using the greatest common factor and area model, solving equations by various methods, and graphing quadratic equations. The tutorial also explains the discriminant's role in determining the number of real solutions and demonstrates how to convert quadratic functions between standard, vertex, and factored forms.

What is the greatest common factor of 4x^2 - 8x + 10?

• 10

• 4

• 2

• 1

When solving a quadratic equation by factoring, what is the first step?

• Apply the area model

• Look for the greatest common factor

• Find the discriminant

• Use the quadratic formula

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CCSS.HSA-REI.B.4B

What principle is used to solve equations where two factors multiplied equal zero?

• Factoring principle

• Square root principle

• Principle of zero products

• Quadratic formula

Tags

CCSS.HSA-REI.B.4B

How do you solve a quadratic equation using square roots?

• Find the discriminant

• Isolate x^2 and take the square root

• Use the quadratic formula

• Factor the equation

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CCSS.HSA-REI.B.4B

What does the discriminant tell us about a quadratic equation?

• The factors of the equation

• The x-intercepts of the graph

• The number of real solutions

• The vertex of the parabola

Tags

CCSS.HSA-REI.B.4B

How do you find the x-coordinate of the vertex in standard form?

• -b/2a

• b/2a

• -b/a

• b/a

What is the effect of 'a' in the vertex form of a quadratic function?

• Stretches or shrinks the graph vertically

• Reflects the graph over the x-axis

• Shifts the graph up or down

• Shifts the graph left or right

What is the vertex form of a quadratic equation?

• y = a(x + h)^2 - k

• y = ax^2 + bx + c

• y = a(x - h)^2 + k

• y = ax^2 - bx - c

How do you convert a quadratic equation from vertex form to standard form?

• Find the greatest common factor

• Complete the square

• Use the quadratic formula

• Multiply everything out

What does it mean to factor a quadratic equation completely?

• Graph the equation

• Break it down into its prime factors

• Solve the equation for x

• Write it as a product of its linear factors