Properties of Functions (id: 0b02100e1)

本题目来源于试卷: Properties of Functions，类别为 IB数学

[填空题]
Let $ f(x)=e^{x}-2 $ and $g(x)=3 x+k$ , for $x \in \mathbb{R}$ , where k is a constant.
1. Find $(g \circ f)(x)$ .   
2. Given that $\lim _{x \rightarrow-\infty}(g \circ f)(x)=-4$ , find the value of k .   

参考答案:
空格1: 2*(x-2)^2+1  空格2: 2*x^2+1 


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