To find an equation of a line you must know it’s gradient (how steep the line is) 
to do this you use the formula 
Y2-Y1/X2-X1
 2—3/-2-3 or change in y divided by change in X
so that is -1=gradient 
to find the y intercept you use the formula 
y-y1=m(x-x1)
this might look confusing but carry on reading 
so all you do is substitute the values in the formula 
y1 coordinate= -3
X1 coordinates = 3
m= gradient which was figured out above = -1
substituting —> 
y-(-3)=-1(x-(3))
Y+3=-x+3
rearranging into y=mx+c
Y=-x

Maths

What’s the equation of a line on a graph with points of (3,-3) (-2,2)

Biology

What is 2a+5a

use the cosine rule b^2 + C^2 -A^2/ 2bc
to find the cosA angle. then do cos-1 to find the angle. 
then use sine rule= 1/2AB sinC to find the area
Hope it works 

How do I find the area of a triangle when I only know the three side lengths

the point of contact = points of intersections 
to find this you can equate the both equations of the circle and the tangent
then rearrange to find the x value and substitute to find y values 
you can do this eg/ by simultaneous equations. 

How do I find the point of contact of a tangent to a curve or circle

To find an equation of a line you must know it’s gradient (how steep the line is) 
to do this you use the formula 
Y2-Y1/X2-X1
 or change in y divided by change in X
=gradient 
to find the y intercept you use the formula 
y-y1=m(x-x1)
this might look confusing but carry on reading 
so all you do is substitute the values in the formula 
m= gradient
rearranging into y=mx+c

How do I find the equation of a line on a graph using the equation y=mx+c

What is short division

Yes of a linear line where m is the gradient (steepness of the line) and c is the y intercept (where the line hits the y-axis).

Maths question                        Gradient of a line y=mx + c

Start early and have a plan and stick to it. Be organised and don’t leave everything till the last week. Keep going over things so u don’t forget 

General

What’s the best way to revise over the Christmas holidays?

Do past papers and memorise their answers x

Study Skills

How do you revise GCSE German (AQA) (Foundation)? I am currently working at a Grade 2 but am hoping for a Grade 4/5 in the summer.

It gives out a lot of methane which contributes to pollution and in turn contributes to global warming

Fowzi Begum

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