Posted by Julia on Monday, May 5, 2008 at 9:34pm.
Try the form y = m x + b
where m is the slope and b is the y axis intercept.
We are given m. It is -2
so
y = -2 x + b
now we are give a point where x = 3 and y = 5
put those values in
5 = -2*3 + b
5 = -6 + b
b = 11
so in the end
y = -2x + 11
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