BW - 8.1-8.3 Quadratic Graphs

What piece of information does c identify in the following equation?

y=ax²+bx+c

• zeros

• axis of symmetry

• direction

• y-intercept

Which answer choice describes y = -3x² +7x - 2 accurately

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum

What are the x-intercept(s) of this graph?

• -1 and -3

• -1 and 3

• 1 and 3

• 1 and -3

What is the range of the graph?

• all real numbers

• y ≥ 0

• y ≥ -1

What is the domain of the graph?

• all real numbers

• to infinity and beyond

• y ≥ -1

• x ≥ 0

What is the significance of the ordered pair (2, -4) to the graph?

• it is the vertex

• it is the y-intercept

• it is the axis of symmetry

• it is the x-intercept

What is the equation for axis of symmetry?

• y = 3

• x = 3

• x = 5

• x = 1

Is the graph of the equation y=2x² wider, skinnier or the same width as the standard parabola y = x²?

• wider

• skinnier

• same

• impossible to tell

Quadratic equations take the shape of a _______ when graphed.

• parabola

• straight line

• snaked line

• elliptical

Does the following graph have a maximum or minimum.

• Maximum
• Minimum