Practice Summary (6) - Quadratic Equations - IB 10 Mathematics

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6 sample questions

Question 1.
Write the standard form of the quadratic equation 3x² + 4x + 1.
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Standard form has ax² + bx + c.
Question 2.
Is x² - 4x + 4 a quadratic equation? Why or why not?
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Look for the x² term.
3Question 3.
What is the standard form of a quadratic equation?
- ax² + bx + c = 1
- ax² + bx + c = 0
- ax + b = 0
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Focus on the equation's format.
4Question 4.
True or False: The discriminant can be negative.
- True
- False
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What happens when D < 0?
Question 5.
A ball is thrown upward with an initial velocity of 20 m/s from a height of 2 m. Derive the height equation and determine when it hits the ground.
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Use the quadratic formula for finding t.
Question 6.
Two numbers have a sum of 10 and their product is 20. Form the quadratic equation and find the numbers.
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Rearrange to find the quadratic equation.

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