Midterm Practice
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is direct variation?
Back
Direct variation is a relationship between two variables where one variable is a constant multiple of the other. It can be expressed as y = kx, where k is a non-zero constant.
2.
FLASHCARD QUESTION
Front
Identify the standard form of a quadratic expression from the product (x + 2)(x + 3).
Back
The standard form is x² + 5x + 6.
3.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has two solutions?
Back
It means that the two equations intersect at two distinct points on a graph.
4.
FLASHCARD QUESTION
Front
Convert the expression y²/³ into a radical expression.
Back
The radical expression is ∛y².
5.
FLASHCARD QUESTION
Front
What is the equation that represents direct variation?
Back
The equation is y = kx.
6.
FLASHCARD QUESTION
Front
What is the definition of a quadratic equation?
Back
A quadratic equation is a polynomial equation of degree 2, typically in the form ax² + bx + c = 0.
7.
FLASHCARD QUESTION
Front
How do you find the vertex of a parabola given in standard form?
Back
The vertex can be found using the formula (-b/2a, f(-b/2a)) where f(x) is the quadratic function.
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