PLEASE HELP !! PLS

Rectangle abcd is translated to get rectangle a’b’c’d’. rectangle abcd moves units along the x-axis to get rectangle a’b’c’d’. rectangle abcd moves units along the y-axis to get rectangle a’b’c’d’. the algebraic rule that describes this translation is t(x, y), where x = and y = .

Which of the following is correct interpretation of the expression -4+13

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?