Topic 2B Review

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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8 questions
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1.
FLASHCARD QUESTION
Front
What is the equation that represents the total amount of money Jerry has after working x hours if he starts with $20 and earns $7 per hour?
Back
y = 7x + 20
2.
FLASHCARD QUESTION
Front
How do you write a function that represents the number of bricks (y) laid in x rows if each row has 20 bricks?
Back
y = 20x
3.
FLASHCARD QUESTION
Front
If a plumber charges $50 for a house call and $25 per hour for labor, how much would it cost for 2.5 hours of labor?
Back
$112.50
4.
FLASHCARD QUESTION
Front
What type of slope does a line have if it decreases from left to right?
Back
Negative
5.
FLASHCARD QUESTION
Front
What is the slope-intercept form of the equation for a line with a slope of 4 and a y-intercept of 3?
Back
y = 4x + 3
6.
FLASHCARD QUESTION
Front
Define slope in the context of a linear equation.
Back
Slope is the measure of the steepness of a line, calculated as the change in y over the change in x.
7.
FLASHCARD QUESTION
Front
What does the y-intercept represent in a linear equation?
Back
The y-intercept is the point where the line crosses the y-axis, representing the value of y when x = 0.
8.
FLASHCARD QUESTION
Front
How do you determine the slope of a line given two points (x1, y1) and (x2, y2)?
Back
Slope (m) = (y2 - y1) / (x2 - x1)
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