Practice Quadratic Formula (3.3) - Quadratic Functions - IB 10 Mathematics

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Solve using the quadratic formula: $x^2 - 5x + 6 = 0$ .
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Use the quadratic formula: $x = \\frac{-b \\pm \\sqrt{b^2 - 4ac}}{2a}$.
Question 2.
Find the discriminant for $2x^2 + 4x + 2 = 0$ .
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Calculate $b^2 - 4ac$.
3Question 3.
What is the quadratic formula?
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Remember it comes from completing the square.
4Question 4.
If the discriminant is less than zero, what does it indicate?
- Real Roots
- No Real Roots
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Think about the parabola's position relative to the x-axis.
Question 5.
A rocket is launched, and its height is given by h(t) = -16(t^2) + 96t + 50. When does it reach its maximum height, and how high does it go?
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Calculate the vertex using the vertex formula.
Question 6.
For the equation 5x^2 - 20x + 15 = 0, identify the type of roots and solve it using the quadratic formula.
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Use the quadratic formula directly and analyze the discriminant.

5 more questions in this section. Enroll free to practise them all.