8.1-8.3 Quiz Review

Label the Graph with the Correct Key Features.

1. ​ (a)   2. ​ (b)   ​

3. ​ (c)   ​ 4. ​ (d)  

• Y-Intercept
• Zero
• Vertex

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

What is the formula above primarily used for?

• Finding the axis of symmetry from standard form

• Finding the axis of symmetry from vertex form

• Finding the vertex from vertex form

• Finding the vertex from standard form

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

• y = -2
• x = 3
• x = -3
• y = 2

Does the equation open up  or down? 
Y = -3x² +7x - 2

• up
• down

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Identify a, b, and c 
 y=3x²-8+5x

• A=3, B=5, C=-8
• A=3, B=-8, C=5
• A=3x², B=5x, C=-8
• A=3x² , B=-8, C=5x

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