Practice problem
Let f(x)=0.42xaf(x)=0.42x^af(x)=0.42xa where aaa is a nonzero real number. Find aaa if f−1(x)=7.889x1af^{-1}(x)=7.889x^{\frac1a}f−1(x)=7.889xa1.
0.630.630.63
0.350.350.35
0.070.070.07
0.420.420.42
Type a concept, like “slope” or “photosynthesis”.
