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The equation of a straight line is 3x + 2y = 24. Find where the line crosses the x-axis.

Let's first think about what it means when the line crosses the x-axis. If we consider a normal x-y coordinate plane, every point on the x-axis has a y value of 0. So if we are trying to find out where the l...
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Answered by Angela D. • Maths tutor
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Find the turning points of the curve (x^3)/3 + x^2 -8x + 5

Step one, we need to assess what the question is asking us to do, in this case, find the turning points.The turning points on the graph are where the gradient is equal to zero, so in order to find the turnin...
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Answered by Ellie M. • Maths tutor
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3-methyl pent 2 ene reacts with HBr to form two products. Which of these products is the minor and major product and why?

3-bromo 3 methyl pentane will be the major product while 1 bromo 3 methyl pentane will be the minor. This is due to a more stable carbocation being formed. A secondary carbocation is more stable than a primary.
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Answered by Alex N. • Chemistry tutor
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Write 8^2(4^2 / 2^7) in the form 2^x

We know that 8 2 = (2 3 ) 2 = 2 6 and 4 2 = (2 2 ) 2 = 2 4 So we can write the original expression as 2 6 (2 4 /2 7 ) Then using indices laws we get 2 6 (2 -3 ) = 2 3
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Answered by Charlotte C. • Maths tutor
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Solve the simultaneous equations y – 3x + 2 = 0, y^(2) – x – 6x^(2) = 0

Start on the easiest equation and solve to find yy-3x+2=0 <=> y=3x-2Then susbtitute in equation the expression of y in the second equation and simplify(3x-2) 2 -x-6x 2 =0 <=> 9x 2 -12x+4-x-6x 2 =...
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Answered by Maria P. • Maths tutor
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