What is the definition of a function in algebra?
Midterm Review- Algebra I

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Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation that assigns exactly one output for each input from its domain.
2.
FLASHCARD QUESTION
Front
How do you find the slope of a line given two points (x1, y1) and (x2, y2)?
Back
The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).
3.
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.
4.
FLASHCARD QUESTION
Front
What does it mean for two lines to be parallel?
Back
Two lines are parallel if they have the same slope and will never intersect.
5.
FLASHCARD QUESTION
Front
How do you evaluate a function f(x) at a specific value?
Back
To evaluate f(x), substitute the specific value of x into the function and simplify.
6.
FLASHCARD QUESTION
Front
What is the product of (a - b)(a + b)?
Back
The product is a² - b², known as the difference of squares.
7.
FLASHCARD QUESTION
Front
How do you convert from point-slope form to slope-intercept form?
Back
Start with y - y1 = m(x - x1) and solve for y to get y = mx + (y1 - mx1).
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