MIDTERM EXAM - 8th grade 2024

Flashcard
•
Mathematics
•
8th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for slope?
Back
The formula for slope is given by: \( m = \frac{y_2 - y_1}{x_2 - x_1} \) where \( m \) is the slope, \( (x_1, y_1) \) and \( (x_2, y_2) \) are two points on the line.
2.
FLASHCARD QUESTION
Front
What is the value on the bottom of the slope formula?
Back
The value on the bottom of the slope formula is \( x_2 - x_1 \).
3.
FLASHCARD QUESTION
Front
What is the value on the top of the slope formula?
Back
The value on the top of the slope formula is \( y_2 - y_1 \).
4.
FLASHCARD QUESTION
Front
How do you solve for the number of votes received by the loser in an election with 550 total votes and the winner receiving 220 more votes?
Back
Let the number of votes for the loser be \( x \). Then the winner has \( x + 220 \). The equation is: \( x + (x + 220) = 550 \). Solving gives \( x = 165 \). The loser received 165 votes.
5.
FLASHCARD QUESTION
Front
Back
To solve for x, multiply both sides by -7: \( x = -21 \).
6.
FLASHCARD QUESTION
Front
What does a negative slope indicate about a line?
Back
A negative slope indicates that as the x-values increase, the y-values decrease, meaning the line falls from left to right.
7.
FLASHCARD QUESTION
Front
What is the definition of slope?
Back
Slope is a measure of the steepness of a line, calculated as the ratio of the vertical change to the horizontal change between two points.
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