Mathematics: Which function represents g(x), a reflection of f(x) =2/5 (10)x across the x-axis? g(x) =-2/5 (10)x g(x) =-2/5(1/10)^x g(x) =2/5(1/10)^-x g(x) =2/5 (10)-x

Which function represents g(x), a reflection of

kovacscsilla55owjvhn

15.01.2022

All values of f(x) will change from positive to negative if you reflect in x-axis.

So the first choice is the correct one.

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annapittbull12

15.01.2022

A. $g(x)=-\frac{2}{5}(10)^x$ .

Step-by-step explanation:

We are given the function $f(x)=\frac{2}{5}(10)^x$ .

Now, g(x) is obtained by reflecting the function f(x) over x-axis.

Reflection of f(x) over x-axis changes f(x) to -f(x).

So, we get,

g(x)=-f(x)

i.e. $g(x)=-\frac{2}{5}(10)^x$

Thus, the reflected function is $g(x)=-\frac{2}{5}(10)^x$ .

So, option A is correct.

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keke0529

26.11.2020

Step-by-step explanation:

ASSUMING all the triangles are identical

A = 5(15•15) + 4(½•15•9) = 1,395 ft²

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