What is a positive correlation?
Lin Reg & Systems Exam Review

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•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
A positive correlation indicates that as one variable increases, the other variable also increases.
2.
FLASHCARD QUESTION
Front
What is a negative correlation?
Back
A negative correlation indicates that as one variable increases, the other variable decreases.
3.
FLASHCARD QUESTION
Front
What is the equation of a line that passes through the points (3, 4) and (0, -5)?
Back
y = 3x - 5
4.
FLASHCARD QUESTION
Front
What system of equations can be used to find the number of dimes (d) and nickels (n) if there are 80 coins totaling $6.60?
Back
d + n = 80 and 0.10d + 0.05n = 6.60
5.
FLASHCARD QUESTION
Front
How do you solve a system of equations using elimination?
Back
To solve using elimination, manipulate the equations to eliminate one variable, then solve for the remaining variable.
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?
Back
The slope represents the rate of change of y with respect to x.
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