Polynomial and Rational Functions
What does end behavior describe about a graph of a rational function?
The behavior of the graph as x approaches positive or negative infinity.
The points where the graph intersects with the axes.
The sharp turns or cusps of the graph.
The maximum or minimum points on the graph.
If is a rational function defined by , what is an excluded value for ?
When considering the graph of a rational function modeling the effectiveness of a product over time, what does an intersection with the horizontal axis represent in the context of real-world scenarios?
A period where there is unsustainable high demand for the product exceeding supply capabilities.
The moment when the product is noneffective as it has no impact on the measured outcome.
The exact time marking the start of the product’s launch onto the marketplace.
A point in time when production must cease due to external factors not related to product effectiveness.
Question #4: Which transformation could turn an oblique asymptote into a horizontal or vertical one when applied to a rational function with higher-degree terms in its numerator than its denominator?
INCORRECT 1. Stretching graph horizontally.
CORRECT. Reducing degree of numerator polynomial so it matches degree of denominator.
INCORRECT 2. Sliding graph up or down the y-axis.
INCORRECT 3. Compressing graph vertically along y axis.
What value can be excluded from the domain of ?
x + 3
x = -3
x = 5
x = 0
What happens to the values of as approaches the vertical asymptote from the right?
The function approaches infinity
The function approaches -infinity
The function approaches the horizontal asymptote
The function decreases without bound
What is the horizontal asymptote of the rational function defined by ?
y = x/2
y = -4/(-1)
y = 1/2
y = x

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Given two rational functions & , if and and and and , then what can we conclude about their graphs?
They have exactly the same graph throughout.
Their graphs never intersect each other.
They are parallel to each other.
They intersect each other at least once but do not have the same graph.
What is the end behavior of the rational function as x approaches positive infinity?
The function approaches 0
The function approaches -infinity
The function oscillates between positive and negative values
The function approaches infinity
A rational function has an undefined value when its denominator is what?
a negative number
zero
any real number
the same as its numerator