Test on Quadratics

Solve by factoring:3x² + 5x + 2 = 0  

• x = -2/3 and x = -1

• x = -3/2 and x = -1

• x = 2/3 and x = 1

• x = 2/3 and x = -1

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve using quadratic formula or by factoring.    2x² + 7x = 15

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

Solve Using the Quadratic Formula or by factoring  x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Find the axis of symmetry for
y = x²- 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

For the function y = -x² - 6x - 7, find the vertex and the axis of symmetry.

• Vertex (3, -2); axis of symmetry x = 3

• vertex (-3, 2); axis of symmetry x = 4

• vertex (-3, 2); axis of symmetry x = -3

• vertex (3, -2); axis of symmetry x = -4

State the axis of symmetry and the vertex.  y = 2x² + 8x -3

• AOS x = -2;  V (-2, -27) 

• AOS x = 2; V (2, -11)

• AOS x = -2; V (-2, -11)

• AOS x = 2; V (2, 21)

The vertex of a parabola is at (-3,5). Where is the line of symmetry?

• x=5

• y=5

• x=-3

• y=-3

What is the green dashed line called?

• roots or x-intercepts

• parabola

• line of symmetry or axis of symmetry

• vertex

• x=2; (2, 4)

• x=-2; (-2, 36)

• x=4; (4, 12)

• x=-4; (-4, 76)