Unit 7 Review
Flashcard
•
Mathematics
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What do the variables x and y represent in the context of withdrawing money from a bank account?
Back
x = number of weeks, y = account balance.
2.
FLASHCARD QUESTION
Front
What is the equation that describes the relationship between the number of weeks and the account balance when withdrawing $10 per week from $1200?
Back
y = -10x + 1200.
3.
FLASHCARD QUESTION
Front
How do you calculate the average rate of change of a function between two points?
Back
Average rate of change = (f(b) - f(a)) / (b - a).
4.
FLASHCARD QUESTION
Front
What is the vertex form of a quadratic equation?
Back
The vertex form is given by y = a(x-h)^2 + k, where (h,k) is the vertex.
5.
FLASHCARD QUESTION
Front
What do the variables x and y represent in the context of buying a TV with a down payment and weekly payments?
Back
x = number of weeks, y = total cost of the TV.
6.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
7.
FLASHCARD QUESTION
Front
What does the slope of a line represent in a real-world context?
Back
The slope represents the rate of change of one variable with respect to another.
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