What is the gradient between (x1,y1)(x_1,y_1)(x1,y1) and (x2,y2)(x_2,y_2)(x2,y2)?
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.
y2−y1x2−x1\dfrac{y_2-y_1}{x_2-x_1}x2−x1y2−y1
Its graph is a straight line with gradient 1.
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.
1.7.2 Differentiation Flashcards
Flashcards for WJEC A Level Maths 1.7.2 Differentiation, covering the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4. 20 cards, matched to the WJEC A Level Maths (1300QS) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.