sat suite question viewer
Algebra
Difficulty: Medium
If and , what is the value of ?
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Explanation
Choice C is correct. The value of can be found by substituting for in the given equation , which yields , or . The value of can be found by substituting for in the given equation , which yields , or . The value of the expression can be found by substituting the corresponding values into the expression, which gives . This expression is equivalent to , or .
Choice A is incorrect. This is the value of , not .
Choice B is incorrect and may result from calculating as , rather than
.
Choice D is incorrect and may result from conceptual or calculation errors.