Mod 9 Part 2 Test Review

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the y-intercept of a function?
Back
The y-intercept is the point where the graph of a function intersects the y-axis. It is the value of the function when x = 0.
2.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain of a function is the set of all possible input values (x-values) for which the function is defined.
3.
FLASHCARD QUESTION
Front
What does it mean if a function exhibits exponential decay?
Back
Exponential decay occurs when a quantity decreases at a rate proportional to its current value, typically represented by a function of the form f(x) = a(1 - r)^x, where 0 < r < 1.
4.
FLASHCARD QUESTION
Front
Identify the initial value in the function f(x) = 13(0.27)^x.
Back
The initial value (y-intercept) is 13, which is the value of the function when x = 0.
5.
FLASHCARD QUESTION
Front
What is the parent function of exponential functions?
Back
The parent function of exponential functions is f(x) = a^x, where a > 0 and a ≠ 1.
6.
FLASHCARD QUESTION
Front
How do you translate the graph of a function vertically?
Back
To translate the graph of a function vertically, you add or subtract a constant from the function. For example, g(x) = f(x) + k translates the graph of f(x) upward by k units if k > 0, and downward if k < 0.
7.
FLASHCARD QUESTION
Front
What is the range of the function f(x) = 3^x?
Back
The range of the function f(x) = 3^x is (0, ∞), meaning it can take any positive value.
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