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The point (-2, 4) lies on the curve in the xy plane. What is the equation of the curve?

a. y = x² + 2
b. y = 2x - 8
c. y = 4x + 2
d. y = -2x + 4

User Pichlbaer
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1 Answer

5 votes

Final answer:

After substituting the point (-2, 4) into the given equations, it appears that none of the listed options a, b, c, or d match the given point. Therefore, the correct equation of the curve is not provided among the choices.

Step-by-step explanation:

To determine which equation corresponds to the curve that the point (-2, 4) lies on, we can substitute the x and y values into the given equation choices and see which one holds true. For each option, if substituting x = -2 and y = 4 results in a true statement, then that equation represents the curve.

  • For option a, substituting gives 4 = (-2)² + 2, which simplifies to 4 = 4 + 2, which is false.
  • Option b gives us 4 = 2(-2) - 8, simplifying to 4 = -4 - 8, which is also false.
  • Substituting into option c yields 4 = 4(-2) + 2, which is 4 = -8 + 2, which is false as well.
  • Finally, option d gives us 4 = -2(-2) + 4, which simplifies to 4 = 4 + 4, which is false.

None of the provided options lead to a true statement when substituted with the point (-2, 4). Thus, either there is an error in the question or the provided options, or the correct equation is not listed among the choices.