
Unit 4 DEUA Extra Credit/RETEST
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of equations?
Back
A system of equations is a set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.
2.
FLASHCARD QUESTION
Front
How do you find the slope of a line from a table of values?
Back
The slope (m) is calculated as the change in y divided by the change in x (m = (y2 - y1) / (x2 - x1)).
3.
FLASHCARD QUESTION
Front
What is the y-intercept of a linear equation?
Back
The y-intercept is the value of y when x = 0. It is the point where the line crosses the y-axis.
4.
FLASHCARD QUESTION
Front
How do you solve for y in the equation 5x - y = 16?
Back
Rearranging gives y = 5x - 16.
5.
FLASHCARD QUESTION
Front
What does the solution (1, 3) represent in a system of equations?
Back
It represents the point where the two equations intersect, meaning x = 1 and y = 3 satisfy both equations.
6.
FLASHCARD QUESTION
Front
What is the purpose of a system of equations in real-world problems?
Back
To find the values of variables that satisfy multiple conditions or constraints simultaneously.
7.
FLASHCARD QUESTION
Front
How do you set up a system of equations from a word problem?
Back
Identify the variables, translate the problem into equations based on relationships described, and express constraints.
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