f-g = -3 x +irrelevant - 9 x - irrelevant
= -12 x + b
slope = m = -12
Now you knew these last two perfectly well. Give your answer and let us just check.
If f(x)=-3x+5 and g(x)=9x-2, what is the slope of the graph of the function (f-g)(x)?
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1 answer