Algebraic Ideas Review

Will the following parabola open up or down?

f(x) = -3x² + 2x - 4

• Up

• Down

In a quadratic function, the c value represents what?

• y-intercept

• x-intercept

• vertex

• axis of symmetry

Find the axis of symmetry of the function:

f(x) = 2x² +4x - 1

• x = -1

• x = 1

• x = 4

• x = 2

Does this parabola have a maximum or minimum?

• Maximum
• Minimum

Which letter determines if a parabola opens up or down?

• a

• h

• k

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

• y = -2
• x = 3
• x = -3
• y = 2

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

Identify the vertex and whether the graph opens up or down.

• (5, 2); opens up
• (5, 2); opens down
• (-5, 2); opens up
• (-5, 2); opens down

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

What's the axis of symmetry of y = 3x² - 6x + 4

• x=1
• x=-6
• x=2
• x=-1