Quadratic Equations Form C

Solve using the Quadratic Formula:

x² + 4x + 3 = 0

• x = 1 or x = 3

• x = 6 or x = 2

• x = -1 or x = -3

• x = -6 or x = -2

What are the values of a, b, and c in the quadratic equation 3x² - 10 = -4x

• a = 3x² b = -10 c = -4x

• a = 3 b = -10 c = -4

• a = 3 b = -4 c = -10

• a = 3 b = 4 c = -10

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

In the quadratic formula, if b²-4ac > 0, then the quadratic equation has

• one real solution

• two real solutions

• no real solution

• none of these

Using the discriminant, this equation y = x² -12x + 36 has

• one real solution

• two real solutions

• no real solution

Vertical line through the vertex, about which the parabola is symmetric.

• x-intercept

• Parabola

• y-intercept

• Axis of symmetry

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

• y = -2
• x = 3
• x = -3
• y = 2

The point where the graph of the quadratic function and its axis of symmetry intersect and represents a minimum or maximum point is called the

• parabola

• vertex

• graph

• point

When a parabola opens downward the vertex is

• a minimum
• a maximum
• a vertex
• a parabola

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

A parabola opens up when a is:

• negative

• positive

• 0

• infinite

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Tags

CCSS.HSA.REI.B.4