Measuring the Rate of Change at a Point on a Curve (AQA A-Level Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is a tangent to a curve?
What is a tangent to a curve?
A line touching the curve at one point
What does the tangent line represent at a point on a curve?
What does the tangent line represent at a point on a curve?
The instantaneous rate of change
How should the tangent line touch the curve at the point of interest?
How should the tangent line touch the curve at the point of interest?
Touch only, not cross at that point
What forms the hypotenuse when constructing the right-angled triangle?
What forms the hypotenuse when constructing the right-angled triangle?
The tangent line
Which formula calculates the gradient of the tangent?
Which formula calculates the gradient of the tangent?
In the product formation example, what is change in y if mass goes from 21 g to 29 g?
In the product formation example, what is change in y if mass goes from 21 g to 29 g?
8 g
What is the gradient if change in y is -50 g and change in x is 9 minutes?
What is the gradient if change in y is -50 g and change in x is 9 minutes?
-5.6 g min⁻¹
What does a negative gradient indicate?
What does a negative gradient indicate?
Decreasing values
Why must units be included in the final answer?
Why must units be included in the final answer?
They show what changes per unit time
What does the gradient of the tangent equal?
What does the gradient of the tangent equal?
The rate of change at that point