Jan20- Alg1-Final Exams

.How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Find the vertex of

 $y=3\left(x-2\right)^2+3$  

•  $\left(2,3\right)$  

•  $\left(-2,3\right)$  

•  $\left(2,-3\right)$  

•  $\left(-2,-3\right)$  

Find the axis of symmetry of

 $y=3\left(x-2\right)^2+3$  

•  $x=2$  

•  $x=-2$  

•  $x=3$  

•  $x=-3$  

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

What is the formula above used for?

• Finding the axis of symmetry and the x-coordinate of the vertex in standard form

• Finding the vertex from intercept form

• Finding the axis of symmetry from vertex form

• Finding the x-intercept 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

What is the Domain and Range?

• Domain: All real numbers

Which coordinates best represents the vertex of the graph?

• (1, 0)

• (3, -4)

• (0, 5)

• (5, 0)

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive
• Maximum value, because the b value is positive
• Maximum value, because the a value is positive
• Minimum value, because the c value is negative

The constant term of a quadratic function is the...?

• vertex
• minimum
• axis of symmetry 
• y-intercept