Which are true of the function $ f(x)=49\left(\frac{1}{7}\right)^{x} $ ? Select three options.
The domain is the set of all real numbers.
The range is the set of all real numbers.
The domain is $ x0 $.
The range is $ y0 $.
As $ x $ increases by 1 , each $ y $-value is one-seventh of the previous $ y $-value.

Question

Which are true of the function $ f(x)=49\left(\frac{1}{7}\right)^{x} $ ? Select three options.
The domain is the set of all real numbers.
The range is the set of all real numbers.
The domain is $ x>0 $.
The range is $ y>0 $.
As $ x $ increases by 1 , each $ y $-value is one-seventh of the previous $ y $-value.

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