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1.7.18 Chain rule (A-level only)

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Question 33

The mechanical stress, $y$ , on a structural beam is modeled by the function $y = 1.5(2x - 7)^4 + 18$ , where $x$ is the beam's temperature in degrees Celsius. The curve of this relationship passes through the point $(3.5, 18)$ .

By differentiating the function using the chain rule, determine the equation of the normal to the curve at the point $(3.5, 18)$ .

Select your answer from the options below:

y = 18

y = 3.5

x = 18

x = 3.5

[4]

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1.7.18 Chain rule (A-level only) Questions

A Level
Maths
1.7.18 Chain rule (A-level only)

74 exam-style questions on OCR A Level Maths 1.7.18 Chain rule (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

1.7.18 Chain rule (A-level only)

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1.7.18 Chain rule (A-level only)

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Question 33

By differentiating the function using the chain rule, determine the equation of the normal to the curve at the point $(3.5, 18)$ .

Select your answer from the options below:

y = 18

y = 3.5

x = 18

x = 3.5

[4]

Markscheme

1.7.18 Chain rule (A-level only) Questions

A Level
Maths
1.7.18 Chain rule (A-level only)

74 exam-style questions on OCR A Level Maths 1.7.18 Chain rule (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.