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Describe the 3 types of solution to a quadratic equation

The behaviour of the solution depends on the value of the discriminant, D = b 2 – 4 ac, (aptly named as it allows you to discriminate between solutions) If D > 0: The equation has real roots (the parabola...
GL
Answered by George L. • Maths tutor
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What is the difference between a competitive and a non-competitive inhibitor?

Inhibitors are molecules that stop substrates from being able to bind to their enzymes, and therefore inhibit the action of specific enzymes. A competitive inhibitor is an inhibitor which has a similar shape...
SC
Answered by Sreya C. • Biology tutor
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For which values of x is the following inequality satsified: x^2 + 6x + 6 < 1

(I assume I can use the whiteboard in an actual lesson/interview) So this question might seem quite simple, and maybe it is, but this type of question can catch many students out. The first step is always to...
NH
Answered by Nabeel H. • Maths tutor
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Simplify: 2x + 6y + 2y - x

Collect like terms 2x - x +6y +2y 2. Simplify like terms 2x - x = x 6y+2y=8y 3. Write final answer x + 8y
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Answered by Noureen L. • Maths tutor
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Male characters always present more interest than female characters in -blank-'s narratives, how far do you agree with this statement ?

Male characters have jobs and power. The narrator of the novel may be male, putting him in a position of superiority. The cultural position of men and women in historical eras.
EB
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