Quadratics Equivalent

Which expression is equivalent to x²-4x-21

• (x-7)(x+3)

• (x+7)(x-3)

• (x+7)(x+3)

• (x-7)(x-3)

Which expression is a factor of 2x² - 3x + 1

• x + 2

• x - 1

• 2x + 1

• None of these

Which expression is a factor of 2x² - 5x - 3

• x + 3

• 2x + 1

• 2x - 3

• None of these

Factor 9x²-24x+16

• (3x+4)(3x-4)

• (3x-4)²

• (3x+4)²

• The expression is prime

Which expression is equivalent to 2x² +4x + 3

• (2x+ 1)(x+3)

• (2x+1)(x-3)

• (2x-1)(x+3)

• none of these

One of the factors of the expression x² -x-20 is (x-5), what is the other factor?

• (x-4)

• (x-1)

• (x+4)

• (x+5)

What are the factors of 4x²-49

• (4x +7) (4x-7)

• (2x-7)(2x + 7)

• (2x-7)²

• This expression is prime

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

What is the vertex?

• (0, - 1)

• (0, 0.5)

• (-1, 0)

• (0.5, 0)

Does the quadratic have a max/min vertex, and does the graph open up/down?

• max/ opens down

• min/ opens up

• max/ opens up

• min/ opens down