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Find f(-2) for f(x) = 5•3*x

User MattSavage
by
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2 Answers

2 votes
Hello!

You put -2 in for x

I don't know whether it is times x or to the power of x so I will do both

5 * 3 * x

5 * 3 * -2 = -30
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5 * 3^x

5 * 3^-2

5 * 1/81 = 5/9 or 0.55555

Hope this helps!
User Inducesmile
by
8.5k points
2 votes

Answer:

The value of f(-2) is 0.56

Explanation:

Given the function


f(x)=5.3^x

we have to find the value of f(-2)


f(x)=5.3^x

Put x=-2


f(-2)=5.3^(-2)


f(-2)=5* (1)/(3^2)


f(-2)=(5)/(9)=0.5555...\sim 0.56

Hence, the value of f(-2) is 0.56

User Laurent Couvidou
by
8.4k points

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