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How do you find the intersection of a straight line and a curve?

Question : You have been given the following straight line equation --> y = 2x + 3 and the equation for a curve --> y = x 2 + 3x + 1. At the point(s) where these lines intersect we know that the coordi...
MO
Answered by Manon O. • Maths tutor
5588 Views

How do I think of coordinates of a point?

Firstly you draw your x and y axis. The x-axis is the horizontal line and the y-axis is the vertical line. The coordinates of a point help you understand its location from the centre, which on the x and y ax...
MC
Answered by Margarita C. • Maths tutor
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Solve the equation ((x^2+2)^2)/x^2=9

First, note that we have x 2 in the denominator. This tells us that x 2 cannot equal to 0. So we have the boundary condition that x is not equal to 0. Now, to get rid of the denominator, we can multiply both...
VY
Answered by Vanesa Y. • Maths tutor
3341 Views

GCSE Maths: Expand and simpify 14(3x-7y)-2x(21-y)

=((14 3x)-(14 7y))+((-2x 21)-(-2x y))=42x-98y-42x+2xy=2xy-98y
NH
Answered by Nathan H. • Maths tutor
3125 Views

Factorise 9a^2+6ab.

So what does it mean when we factorise? Well, we want to take the highest common factor (HCF) of both of these algebraic terms and we want to take that outside the back to simplify the expression. First, let...
RD
Answered by Rebecca D. • Maths tutor
4420 Views