Practice Solutions To Quadratic Equations (2.3.5) - Algebra

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Identify the quadratic equation from this expression: 5x² + 3x - 7.
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Look for the form ax² + bx + c.
Question 2.
What is the discriminant of the equation x² - 4x + 3 = 0?
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Use the formula D = b² - 4ac.
3Question 3.
What is the standard form of a quadratic equation?
- ax + b + c = 0
- ax² + bx + c = 0
- a(x - r)² + k = 0
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Look for the term with x squared.
4Question 4.
Is the discriminant used to determine the nature of roots?
- True
- False
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Think about how it influences the Quadratic Formula outcomes.
Question 5.
Find all possible roots of the equation 3x² - 12x + 9 = 0 and classify them.
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Check if the discriminant equals zero.
Question 6.
An object is thrown upwards described by the equation -16t² + 64t + 80 = 0. Find the times at which it reaches the ground.
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Set the height equation to zero to find the time.

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