If the vertex of a parabola is (0, 0) and a it opens down, what is the maximum value of the function?
0
or y=0
If a polynomial has an even degree and a negative leading coefficient, describe the end behavior.
Which part of a rational function do you look at to find the Vertical Asymptote(s)?
Bottom
or Denominator
+/- 1, +/- 3, +/- 1/2, +/- 3/2
True or False: i2=1
False
Does y=-2x2+8 open up or down? Does it have a max or a min?
Down, max
If a zero has a multiplicity of 4, does the graph cross or bounce at the x-axis?
Bounce
If the degree of the numerator is smaller than the degree of the denominator, what is the Horizontal Asymptote?
y=0
or
x-axis
Use the remainder theorem to find the remainder of (x2-5) / (x-1)
Solve x2+16=0
+/- 4i
If a parabola has a vertex at (2, -5) and it opens up, how many x intercepts must it have?
If the graph of a polynomial crosses the x-axis at x=-1, is the multiplicity of that zero even or odd?
Odd
If the degree of the numerator is equal to the degree of the denominator, how do you find the Horizontal Asymptote?
Divide the leading coefficient of the numerator by the denominator
If a polynomial has a degree of 3, what is the maximum number of real zeroes it can have?
3
Solve in interval notation:
(x-2)(x+4)>0
(-infinity, -4) u (2, infinity)
Find the vertex of y=x2-6x+5 by using formula x=-b/2a
(3, -4)
What is the maximum number of "turns" (turning points) a polynomial with a degree of 6 can have?
5
Find the 'neighbor' points you would plot for
y=(4)/(x-3)
x=2, x=4
If you are looking at a graph and it bounces off the x-axis at x=4, what do you know about the multiplicity of that zero?
It must be an even multiplicity (like 2, 4, 6)
FOIL: (3+2i)(3-2i)
True or false: every quadratic function has exactly one y-intercept
True
Identify the zeroes and their multiplicity for y=x2(x-4)3
x=0 (mult. 2), x=4 (mult. 3)
Why is the value of a Vertical Asymptote excluded from the domain of the function?
Because it makes the denominator 0 (ERROR)
Find the zeroes for this polynomial function and give the multiplicity for each zero
x4-3x3-18x2
zeroes: 0 (mult. 2), -3 (mult. 1), 6 (mult. 1)
Use the Quadratic Formula to find the zeroes of x2-4x+5
*Can use your notes for this one! quadratic equation formula
2 +/- i