First you have to change the x value to 4x because for it to be perpendicular it has to be opposite slope so the equation is y=4x-9
A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. This is important for processes and/or reactions which require specific and stable pH ranges. Buffer solutions have a working pH range and capacity which dictate how much acid/base can be neutralized before pH changes, and the amount by which it will change.
<span>A brick veneer wall differs from a bearing wall in that connectors are usually visible in bearing, brick walls. </span>