Unit 3 Algebra retest
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the rate of change in a linear equation?
Back
The rate of change in a linear equation represents how much the dependent variable (y) changes for a unit change in the independent variable (x). It is often referred to as the slope of the line.
2.
FLASHCARD QUESTION
Front
How do you find the slope (m) and y-intercept (b) of a linear equation?
Back
3.
FLASHCARD QUESTION
Front
Write the equation of a line given the slope and y-intercept: m = 1/2, b = 3.
Back
4.
FLASHCARD QUESTION
Front
What does the equation 7x + 12y = 82 represent in a word problem?
Back
The equation represents a linear relationship between two variables, x and y, where 7 times the value of x plus 12 times the value of y equals 82.
5.
FLASHCARD QUESTION
Front
How do you solve for y in the equation 8x + 4y = 16?
Back
To solve for y, isolate y on one side: 4y = 16 - 8x, then divide by 4: y = -2x + 4.
6.
FLASHCARD QUESTION
Front
What is the slope of a line if the equation is y = 4x + 1?
Back
The slope of the line is 4.
7.
FLASHCARD QUESTION
Front
Define slope in the context of a graph.
Back
Slope is a measure of the steepness or incline of a line on a graph, calculated as the ratio of the vertical change (rise) to the horizontal change (run) between two points on the line.
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