x = 8 y = x 2 + 8 The graphs of the equations in the given system of equations

Question

x = 8 y = x 2 + 8 The graphs of the equations in the given system of equations intersect at the point x , y in the xy -plane. What is the value of y ?

Accepted Answer

Choice D is correct. Since the graphs of the equations in the given system intersect at the point x , y , the point x , y represents a solution to the given system of equations. The first equation of the given system of equations states that x = 8 . Substituting 8 for x in the second equation of the given system of equations yields y = 8 2 + 8 , or y = 72 . Therefore, the value of y is 72 . Choice A is incorrect. This is the value of x , not y . Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors.

Question e223b9