His Find an equation of the line that contains the given point and is perpendicular to the given line. Use a graphing calculator to verify the result.
(7,6), y = - 4x - 7
The equation of the line is
(Simplify your answer. Use integers or fractions for any numbers in the equation. Do not factor.)

To keep cylindrical tanks from tipping over, a designer is planning to enlarge the original area of the base by 50%. the new tank should have the same volume as the original. how should the designer change the height of the tank? a: make it 50% taller than the height of the original tank. b: make it 6623% taller than the height of the original tank c: make it 3313% shorter than the height of the original tank d: make it 50% shorter than the height of the original tank.