Mary wants to hang a mirror in her room. The mirror and frame must have an area of 7 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?

Question

anonymous · Answer

If x is the thickness of the frame, then 2x + 2 is the width and 2x + 3 is the length of the mirror with frame.
Area of the frame now is 2x + 2 times 2x + 3, which should equal 7
So the equation becomes (2x + 2)(2x + 3) = 7
Simplifying it you get 4x^2 + 10x - 1 = 0

anonymous · Answer

Thanks so much, want to help with another?

anonymous · Answer

Sure

anonymous · Answer

The graph of f(x) = x2 is shifted 3 units down to obtain the graph of g(x). Which of the following equations best describes g(x)?

anonymous · Answer

@Cpt.Sparz

anonymous · Answer

Is this multiple choice?
Or do I have to go step by step? o:

anonymous · Answer

g(x) = (x + 3)^2

 g(x) = x^2 - 3 

 g(x) = x^2 + 3 

 g(x) = (x - 3)^2

anonymous · Answer

I believe the answer is  g(x) = (x - 3)^2