Differentiation

WMA11Topic 1.42 questions

Gradients of curves, differentiating powers of x, tangents and normals.

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Original practice questions written in the style of the exam.

b

b

c

8

x

+

2

M1 Substitutes

x = 3

to get gradient of tangent

= 5

(1)

B1

y

-coordinate of

P

is

2

(1)

M1 Uses normal gradient

-\tfrac{1}{5}

with

(3, 2)

to form a line (1)

A1

x + 5y - 13 = 0

(1)