OST Questions (pt 2)
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a linear equation?
Back
A linear equation is an equation that models a straight line when graphed. It can be written in the form y = mx + b, where m is the slope and b is the y-intercept.
2.
FLASHCARD QUESTION
Front
Write the linear equation for a tent rental that costs $45 per hour plus a flat fee of $135.
Back
y = 45x + 135, where y is the total cost and x is the number of hours rented.
3.
FLASHCARD QUESTION
Front
How do you evaluate a function at a specific point?
Back
To evaluate a function f(x) at a specific point x = a, substitute a into the function and simplify.
4.
FLASHCARD QUESTION
Front
Evaluate f(7) for the function f(x) = -2x^2 - 3x.
Back
f(7) = -2(7)^2 - 3(7) = -119.
5.
FLASHCARD QUESTION
Front
What is a box plot?
Back
A box plot is a graphical representation of data that shows the median, quartiles, and potential outliers.
6.
FLASHCARD QUESTION
Front
How do you find the median from a box plot?
Back
The median is the line inside the box of the box plot, representing the middle value of the dataset.
7.
FLASHCARD QUESTION
Front
What is exponential growth?
Back
Exponential growth occurs when a quantity increases by a fixed percentage over time, often modeled by the function y = a(1 + r)^t.
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