sat suite question viewer
Algebra
/ Linear functions
Difficulty: Easy
For the linear function , is a constant and . What is the value of ?
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Explanation
Choice A is correct. For the linear function , it’s given that . Substituting for and for in the given function yields , or . Subtracting from each side of this equation yields . Therefore, the value of is .
Choice B is incorrect. Substituting for in the given function yields . For this function, when the value of is , the value of is , not .
Choice C is incorrect. Substituting for in the given function yields . For this function, when the value of is , the value of is , not .
Choice D is incorrect. Substituting for in the given function yields . For this function, when the value of is , the value of is , not .