Parabolas Vertex Form

Which of the following equations shows the vertex form of a quadratic?

• x = -b/2a

• x = (-b ±√b² - 4ac)/2a

• y = ax² + bx + c

• y = a(x - h)² + k

Determine the vertex of the parabola y=5(x-2)²–7

• (5, -7)

• (-2, -7)

• (2, -7)

• (-7, -2)

In vertex form, what effect does the k have on the graph?

• Translates Up/Down

• Translates Left/Right

• Narrows/Widens Parabola

• Flips it

Which equation has a vertex of (-3, 4)?

• y = 2(x+3)² + 4

• y = (x+3)² - 4

• y = (x-3)² + 4

• y = 2(x - 3)² + 4

Use the information provided to write the vertex form equation of each parabola.

• A

• B

• C

• D

Use the information provided to write the vertex form equation of each parabola.

• A

• B

• C

• D

What is the equation of this parabola?

• (y - 1)² = -4(x - 3)

• (y - 1)²= 4(x + 3)

• (y + 1)² = 4(x - 3)

• (y + 1)² = -4(x + 3)

What is the significance of the ordered pair (2, -4) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

Tags

CCSS.HSF-IF.C.7A

Given the equation of the parabola, where would the VERTEX be? (put in standard form)

• ( 3 , 3)

• (24, 3)

• ( - 24, 3)

• (-3, 3)

Given the equation of the parabola, where would the VERTEX be?

• ( 3 , 3)

• (24, 3)

• ( - 24, 3)

• (-3, 3)