Unit 3 Review for Math 8
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the equation for a linear function with a fixed cost and a variable cost per unit?
Back
The equation is of the form: y = mx + b, where m is the variable cost per unit and b is the fixed cost.
2.
FLASHCARD QUESTION
Front
What does the term 'rate of change' mean in mathematics?
Back
Rate of change refers to how much a quantity changes in relation to another quantity, often represented as a slope in a linear function.
3.
FLASHCARD QUESTION
Front
How do you determine the fixed cost in a linear equation?
Back
The fixed cost is the value of y when x = 0 in the equation y = mx + b.
4.
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.
5.
FLASHCARD QUESTION
Front
If a pizza costs $8.00 plus $0.50 for each topping, what is the function that models this situation?
Back
The function is y = 0.50x + 8, where x is the number of toppings.
6.
FLASHCARD QUESTION
Front
What is the significance of the slope in a linear equation?
Back
The slope indicates the rate of change of the dependent variable with respect to the independent variable.
7.
FLASHCARD QUESTION
Front
How do you find the total cost if the delivery fee is $50 and the cost per cubic yard of gravel is $75?
Back
The total cost can be modeled by the equation y = 75x + 50, where x is the number of cubic yards.
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