Standard Vertex Form

The parabola y = 3(x + 1)² + 3 has a vertex of

• (3, 3)

• (1, 3)

• ( - 1, 3)

• (3, -1)

The graph of the parabola y = 3(x + 1)² + 3

• will have a maximum.

• will have a minimum.

Tags

CCSS.HSF-IF.C.7A

The parabola y = 3(x + 1)² + 3 will

• open up

• open down

Tags

CCSS.HSF-IF.C.7A

The parabola y = 1/2 (x + 4)² - 3 will

• open down

• open up

Tags

CCSS.HSF-IF.C.7A

• A
• B
• C
• D

Your teacher gives you an equation in vertex form. If the "a" value is -3, select the statements below that are true.

• "a" will be -3 in standard form

• "a" represents a vertical compression

• "a" will become 9 in standard form

• the parabola will open downward

• "a" describes the horizontal shift

Which of the following statements are TRUE? Select all that apply.

• The "a" value is positive.

• The y-intercept is positive.

• It has two zeros.

• The axis of symmetry is x = 1.

• The vertex is at (0, 5).

Tags

CCSS.HSF-IF.C.7A

Convert this equation in vertex form to standard form.

• x² -2x - 2

• x²+x-2

• x²+2

• x²-2x

Convert the equation from vertex form to standard form.

• y = -5x² - 20x - 30

• y = -5x² - 4x - 10

• y = 25x² + 100x + 90

• y = 25x² - 10x - 30