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This question is about turning points of a curve, these occur when the gradient of a line is zero. In its current form, the equation of the curve tells us nothing about the gradient of the curve; it must ...

To solve this we form two simultaneous equations. To make things easier lets denote apples as A and bananas as B. So this means we can write the above information in two equations like so: EQ1) 2A + 3B = ...

The unknowns of x and y are the same in each equation, allowing us to combine the two in order to find out their values.The substitution method can be used in most cases if the coefficient is the same wit...

Integration is the opposite of differentiation.First of all take your 2x³ So in differentiation you would times the power by the coefficient and then minus one from the power.This would give,6x...

First label your two simultaneous equations1)2x+y=42)3x+2y=6Then rearrange 1)1*) y=4-2xNow sub 1*) into 2)3x + 2(4-2x)=6and expand brackets and solve for x3x+8-4x=6-x=-2x=2Now sub x=2 into 1)2(2)+y=4y=0