A straight line passes through the point (2,1) and has a gradient of 3. Find the co-ordinates of the points where this line intersects the axes
M=3
y1=1
x1=2
y-y1=m(x=x1)
y-1=3(x-2)
y-1=3(x-2)
y-1=3x-6
y=3x-6
at the x axis, y=0.
‘Sub in to find the x co-rdinate:
0=3x-5
3x=5
x=5/3
(5/3, 0)
at the y axis, x=0
y=(0X3)-5
y=-5
(0,-5)
AC
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