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Write the exponential function f(x)=-2β’3^(1-x) in the form f(x)=ab^x A) f(x)=-2(1/3)^xB) f(x)=-6(-3)...
4 months ago
Q:
Write the exponential function f(x)=-2β’3^(1-x) in the form f(x)=ab^x A) f(x)=-2(1/3)^xB) f(x)=-6(-3)^xC) f(x)=-6(-1/6)^xD) f(x)=-6(1/3)^x
Accepted Solution
A:
The answer is D.
Use guess and check:
Sub in x=0 into both formulas
y=-2(3)^1-0
y=-2(3)^1
y=-2(3)
y=-6
y=-6(1/3)^x
y=-6(1/3)^0
y=-6(1)
y=-6