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The General Form of the equation of a circle is x^2 + y^2 + 2gx +2fy + c = 0. Find the centre of the circle and the radius of the circle in terms of g f and c.

Given a circle in the general form you can complete the square to change it into the standard form.x 2 + 2gx + y 2 +2fy +c = 0 (1). General form of an equation which has the completing the square method appl...
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Answered by Rushabh S. • Maths tutor
9543 Views

Solve the equation: 4x-2=6x+3

4x-2=6x+3 (-4x)-2=2x+3 (-3)-5=2x (/2)-2.5=x
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Answered by Charlotte R. • Maths tutor
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Find the lowest common multiple and highest common factor of 30 and 60.

Find 30 and 60 as products of their prime factors using factor trees: 60 = 2 x 2 x 3 x 5, 30 = 2 x 3 x 5. Use a Venn diagram to represent the prime factors of 30 and 60 with the groups 'prime factors of 30' ...
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Answered by Anna M. • Maths tutor
11769 Views

What should I do if I can’t answer this question?

Remember you can never be marked down for what you right. Time is of the essence so skip the question and come back to it. You need to identify the topic of the question and you should do everything you know...
Answered by • Maths tutor
3230 Views

Find the equation of the tangent to the curve y = x√x at the point (4,6).

Simply the equation. y = x√x is the same as y = x 3/2 . This is because the square root of any articular number is the same as saying that number raised to the power half. Now to do x 1 multiply x 1/2 we sim...
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Answered by Vyshnavi V. • Maths tutor
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