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GCSE Maths Question

Hi guys,just wanted to know how to work this out. Any help?
I did GCSE Maths a couple years back,and I've completely forgotten everything! At uni now.

picture001.jpg
Reply 1
y=mx+c
m is the gradient of the line and c is where it crosses the y axis
to find the gradient you draw a line one square long from where it hits the y axis and count how many squares the line you need to work out is from the end of the line you just drew. thats the m part. sorry if i didnt expain that very well!
Original post by Lax05
Hi guys,just wanted to know how to work this out. Any help?
I did GCSE Maths a couple years back,and I've completely forgotten everything! At uni now.

picture001.jpg


Find the gradient by choosing any 2 obvious points (for example, for line a you could take (0,0) and (1,4)) then use m=y1y2x1x2m=\frac{y_1-y_2}{x_1-x_2}

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