sat suite question viewer
The function is defined by . What is the x-intercept of the graph of in the xy-plane?
Explanation
Choice D is correct. The given function is a linear function. Therefore, the graph of in the xy-plane has one x-intercept at the point , where is a constant. Substituting for and for in the given function yields . Adding to both sides of this equation yields . Dividing both sides of this equation by yields . Therefore, the x-intercept of the graph of in the xy-plane is .
Choice A is incorrect and may result from conceptual or calculation errors.
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.