This system of equations has an infinite number of solutions. define the solutions algebraically, and allow z to represent all real numbers. 3x − 4y + 4z = 7 x − y − 2z = 2 2x − 3y + 6z = 5

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.