Top answers

The line L passes through the points (-2,3) and (6,9). How do I find the equation of the line that is parallel to L and passes through the point (5,-1)?

Find the gradient of line L. The gradient can be defined as the "change in y" divided by the "change in x". For this situation, the "change in y" would be 9 - 3 = 6. The "c...
JC
Answered by Justin C. • Maths tutor
15299 Views

Prove that an angle subtended by an arc is double at the centre then at the perimeter.

After drawing, bisect the perimeter angle in two from the centre. We now have two isosceles triangles with the sides the same length (1 radius from the centre). We know that 2 angles in each triangle add up ...
MP
Answered by Matthew P. • Maths tutor
7958 Views

I'm struggling with approaching questions in Maths, I just don't know where to start. What should I do?

My approach will take you step by step through each type of question you find difficult. Maths (quite usefully) is very procedural. This means if you follow the instructions step by step you'll find you're a...
GR
Answered by Gus R. • Maths tutor
5178 Views

State the nth term of the following sequence: 3, 7, 11, 15, 19

Start by labelling each term, e.g. 3 is the 1st, 7 is the second etc Find the difference between each term, in this case +4 so we know our nth term will start with 4n Now we substitute in the number for n, w...
AL
Answered by Alice L. • Maths tutor
16220 Views

What is the function of bile in digestion?

Bile is used in the digestive system to emulsify fats. This means that it breaks down the fats into smaller fat droplets creating a larger surface area for the digestive enzymes to work on.
PK
Answered by Poppy K. • Biology tutor
7562 Views