Given f(x) and g(x) = k⋅f(x), use the graph to determine the value of k.
1 answer:
Answer: -3.
Step-by-step explanation:
We are given that : (1)
It means that f(x) and g(x) are proportional.
[Equation of direct variation: y=kx , where k= proportionality constant.]
From the given graph ,
At x= -3 , f(x)=1 and g(x) =-3
Put value of x=-3 in (1) , we get
[∵ f(x)=1 and g(x) =-3]
i.e. The value of k = -3
Hence, the correct answer is -3.
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