The cross-section of a hill with a steep cliff face is modelled by the equation: where y is the height of the ground above sea level, measured in decametres (dam), and a is the horizontal distance from the sea, also measured in decametres. The model applies for values of a in the range 0.01 ≤ z ≤ 3. a) Find the formula that describes the gradient of the hill at any given horizontal distance from the sea. #- b) What is the gradient of the hill at a horizontal distance of: . 10 metres (1 dam) from the sea? y=-e +5ln (z) +6 dam • 1 metre (0.1 dam) from the sea? dam Give your answers to 2 decimal places when necessary.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The cross-section of a hill with a steep cliff face is modelled by the equation:
where y is the height of the ground above sea level, measured in decametres (dam), and is the horizontal distance from the sea, also measured in
decametres.
The model applies for values of in the range 0.01 ≤ x ≤ 3.
a)
Find the formula that describes the gradient of the hill at any given horizontal distance from the sea.
b)
What is the gradient of the hill at a horizontal distance of:
10 metres (1 dam) from the sea?
.
dam
y=-e +5ln (z) +6
• 1 metre (0.1 dam) from the sea?
dam
Give your answers to 2 decimal places when necessary.
Transcribed Image Text:The cross-section of a hill with a steep cliff face is modelled by the equation: where y is the height of the ground above sea level, measured in decametres (dam), and is the horizontal distance from the sea, also measured in decametres. The model applies for values of in the range 0.01 ≤ x ≤ 3. a) Find the formula that describes the gradient of the hill at any given horizontal distance from the sea. b) What is the gradient of the hill at a horizontal distance of: 10 metres (1 dam) from the sea? . dam y=-e +5ln (z) +6 • 1 metre (0.1 dam) from the sea? dam Give your answers to 2 decimal places when necessary.
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