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Maths
GCSE

The line y = x^2 -3x + 2 is reflected in the x-axis, find the equation of the new line that has been reflected.

To find the new equation you use the formula y = -f (x) to find the equation of the reflected line. Using y = -f (x) on y=x2 - 3x + 2 means you need to change the signs from positive to negativ...

Answered by Lily M. Maths tutor
5105 Views

Make c the subject of the formula a=3c-12

To approach this question, you need to think of simple algebra and what the question is asking for. If they want c to be the subject of the formula, they are looking for the answer to be in terms of c. To...

Answered by Raphaelle H. Maths tutor
3974 Views

What actully is the derivative of a function? What does it represent?

The derivative of a function is simply the gradient of that specific function at a general point, x. However, to actually understand why it is the case that 2x is the derivative of x2, and not ...

Answered by James W. Maths tutor
1936 Views

Expand (x+2)^2

Using the crab claw method:(x+2)(x+2) x(x+2) = x^2 + 2x2(x+2) = 2x + 4Add the total together = x^2 + 4x + 4

Answered by Laraib Z. Maths tutor
2860 Views

Factorise fully 3x^2 -48

3x^2 - 48 = 3x(x-16) = 3(x^2-16) = 3(x-4)(x+4)

Answered by Calum M. Maths tutor
4016 Views

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