Algebra 1 IM Unit 6 Lesson 12

What are the green points called?

• axis of symmetry
• vertex
• y-intercept

• x-intercepts

• (8,0) and (4,0)

• (8,0) and (-4,0)

• (-8,0) and (4,0)

• (.25,0) (8,0) and (-4,0)

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

What do we call the highest or lowest point of a quadratic?

• parabola
• vertex
• graph
• point

What are the x-intercepts for g(x) = (x + 8)(x + 2)

• 8 and 2

• (8, 2)

• -8 and - 2

• (-8, -2)

What is the significance of the ordered pair (0, -2) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

Comparing the functions, which is the most narrow?

• f(x)=3x²

• g(x)= -2x²

• h(x)=0.5x²

• a(x)=12x²

What is the y-intercept of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

Is this a max or min?

• max
• min
• cannot be determined

Determine the domain and range of the function

• Domain: All real numbers, Range: All real numbers

• Domain: x ≥ -4, Range: All real numbers

• Domain: All real numbers, Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5, Range: y ≥ -4