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What is the gradient between (x1,y1)(x_1,y_1)(x1,y1) and (x2,y2)(x_2,y_2)(x2,y2)?
A
The required cubic expansion is (x+h)3=x3+3x2h+3xh2+h3\boxed{(x+h)^3=x^3+3x^2h+3xh^2+h^3}(x+h)3=x3+3x2h+3xh2+h3.
B
y2−y1x2−x1\dfrac{y_2-y_1}{x_2-x_1}x2−x1y2−y1
C
Its graph is a straight line with gradient 1.
D
The required quadratic expansion is (x+h)2=x2+2xh+h2\boxed{(x+h)^2=x^2+2xh+h^2}(x+h)2=x2+2xh+h2.
Card 1 of 20
1.7.2 Differentiation Flashcards
20 flashcards on WJEC A Level Maths 1.7.2 Differentiation: the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.