Q. If 3x−y=12, what is the value of (8x)/(2y) ?A) 212B) 44C) 82D) The value cannot be determined from the
Given Equation: We are given the equation 3x−y=12. We need to find the value of (8x)/(2y).First, let's express 8 in terms of 2, since 8 is 2 to the power of 3.8=23
Expressing 8 in Terms of 2: Now, let's substitute 8 with 23 in the expression (8x)/(2y).$(\(8\)^{x})/(\(2\)^{y}) = ((\(2\)^\(3\))^{x})/(\(2\)^{y})
Substitute \(8\) with \(2^3\): Using the power of a power rule, which states that \((a^{(m)})^n = a^{(mn)}\), we can simplify the numerator.\(\newline\)\(((2^3)^{x}) = 2^{(3x)}\)
Simplify the Numerator: Now, the expression looks like this: \(\newline\)\((2^{3x})/(2^{y})\)
Final Expression: Using the quotient of powers rule, which states that \(a^{m}/a^{n} = a^{m-n}\), we can simplify the expression further.\(\newline\)\((2^{3x})/(2^{y}) = 2^{3x - y}\)
Substitute Given Value: We know from the given equation that \(3x - y = 12\). Let's substitute this value into our expression.\(\newline\)\(2^{3x - y} = 2^{12}\)
Final Value: Therefore, the value of \(\frac{8^{x}}{2^{y}}\) is \(2^{12}\), which corresponds to option A.
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