sat suite question viewer
Algebra
/ Linear functions
Difficulty: Easy
The function is defined by . What is the y-intercept of the graph of in the xy-plane?
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Explanation
Choice B is correct. The y-intercept of the graph of a function in the xy-plane is the point on the graph where . It′s given that . Substituting for in this equation yields , or . Since it′s given that , it follows that when . Therefore, the y-intercept of the graph of in the xy-plane is .
Choice A is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.