Quadratic Functions Domain Range

The standard form of a quadratic equation is

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

f(x) = 3x² - 4 is a quadratic function

• true

• false

What is the equation for axis of symmetry?

• y=3

• x=3

When a parabola opens upward the vertex is

• a minimum

• a maximum

• a vertex

• a parabola

Members of the math club launch a model rocket from ground level with an initial velocity of 96 ft/sec. This can be modeled with the function h(t) = -16t² + 96t. What is the range of the function?

• 0 ≤ y ≤ 145

• y ≤ 145

• 0 ≤ x ≤ 6

• All Reals

What is the domain of the graph?

• {x| -∞ ≤ x ≤ ∞}

• (-∞,∞)

• -3 ≤ x ≤ 3

• -15 ≤ y ≤ 9

What is the Range?

• -3 ≤ y < 2

• -3 < y ≤ 2

• -7 ≤ y ≤ 2

• -7 ≤ y < 2

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

• maximum

• minimum

• neither

• both

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 is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2