Practice for Quiz

Does this graph in the back have maximum or minimum value?

• maximum
• minimum
• neither
• both

Which equation best represents the graph?

• y = 2(x - 4)² + 5
• y = 2(x + 4)² + 5
• y = -2(x - 4)² + 5
• y = -2(x + 4)² + 5

How many solutions does this graph have?

• one
• two
• no solutions
• cannot be determined

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

What is the green dot on the parabola called?

• vertex
• root
• dot
• minimum value

What is ALWAYS the domain of a quadratic function?

*Hint: Domain is the set of all x-values included in the function.

• x≥3

• x≤3

• All real numbers

• -1≤x≤5

What is the y-intercept of the function?

• (3,0)

• (-3,0)

• (0,3)

• (0,-3)

Which graph matches the function $h\left(x\right)=-\frac{1}{3}x^2$  ?

• 
• 
• 
• 

What is the axis of symmetry of the given function?

• y = 1
• y = -1
• x = 1
• x = -1

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

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down