
review 2
Authored by Elvira Espinosa
Mathematics
9th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Given the quadratic equation 𝑥 2 − 4𝑥 + 4 = 0, calculate the discriminant and determine the nature of its roots.
Discriminant = 0, Real and Equal Roots
Discriminant > 0, Real and Unequal Roots
Discriminant < 0, Imaginary Roots
Discriminant = 4, Real and Equal Roots
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
How can the discriminant of a quadratic equation help in determining the nature of its roots?
By providing the exact values of the roots.
By indicating whether the roots are real or imaginary
By simplifying the equation to its factored form.
By graphing the equation to visualize the roots.
3.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
The coefficient a affects the width and direction of the parabola, b determines the position of the vertex horizontally, and c controls the vertical position of the parabola.
The coefficient a shifts the parabola up or down, b affects the slope of the parabola, and c determines the x-intercepts.
The coefficient a determines the vertical stretch or compression and the direction of the parabola (upward or downward), b influences the location of the vertex along the x-axis, and c represents the y-intercept.
The coefficient a affects the horizontal position of the parabola, b determines the vertical position of the parabola, and c adjusts the curvature of the parabola
4.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Multiply both sides by 𝑥 − 1 to eliminate the fraction, then simplify the resulting equation to identify it as a quadratic equation
Divide both sides by 𝑥 − 1 to isolate x, and solve for x directly.
Add 𝑥 − 1 to both sides of the equation to simplify the rational expression.
Substitute 𝑥 − 1 into the equation to check if it is a solution
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
The solutions are x = - 1 and x = - 2 , and both are valid for the original rational algebraic equation
The solutions are x = - 1 and x = - 2 , but only one of them satisfies the original rational algebraic equation
The solutions are x = 0 and x = - 2 , and neither satisfies the original rational algebraic equation.
The solutions are x = 1 and x = 2 , but these values must be checked against any excluded values from the original rational expression.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
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