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A washing machine costs £500 in a sale and was reduced by 20%. What was its original price?

Maths is pretty straight forward, you just need to get the key information out the question.So, we have a washing machine that costs £500 on sale. It has been reduced by 20%, so we need to find the origin...

Answered by Raghavi S. • Maths tutor

3728 Views

Factorise the expression given

2x²-2x+4
=2x²+2x-4x+4
=2x(x+1)-4(x+1)
=(x+1)(2x-4)

Answered by Rachael H. • Maths tutor

2348 Views

A curve has equation y = x^3 - 48x. The point A on the curve has x coordinate -4. Is A a stationary point?

A stationary point indicates that the gradient at that coordinate is 0. Hence we need to find the gradient of the line, set this to 0, and then substitute our value of x. Find dy/dx. Remember the equation...

Answered by Oliver H. • Maths tutor

4331 Views

Describe and explain the change in the shape of the graph y=x^2 and y=x^2 + 2.

The graph is translated by two in the positive y-axis direction. For example, for the equation y=x², taking the x-axis values of 0,1,2 and 3, y= 0²,1², 2

Answered by Matthew S. • Maths tutor

2690 Views

Please expand (y+2)(y-3).

We will use the FOIL method. Here FOIL stands for: First, Outside, Inside, Last.
This means we start by multiplying the first terms in each bracket together to get y² .
Then we multi...

Answered by Mary B. • Maths tutor

5840 Views