The answer is: [D]: (8, 47) .
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Explanation:
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Since the answer choices are written in the format of (x, y), and since we are given: " x = 8 " ; we look at the answer choices given and know that the answer will be either: 1) Answer choice "B" ; or 2) Answer choice "D".
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Given the equation: y = 5x + 7 ; and given: " x = 8 " ;
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We know our value "x"; and we plug in that value for "x" to solve for "y" ; as follows:
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y = 5x + 7 ;
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y = (5*8) + 7 ;
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y = (40) + 7 = 47.
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So, x = 8; y = 47. This corresponds with Answer choice: [D]: (8, 47).
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