Answer:
-15 plus or minus the square root of 65 all over 4 (All over means fraction)
Let the width be x, then the length is x + 12.
Area = length x width = x(x + 12) = 589

Solving the quadratic equation, we have that
x = 19 feet
i.e. the width is 19 feet.
Linear, when you plot the numbers it will be in a line. Remember “(line)ar”