And then I also want to figure out the point exactly in between, which is the vertex. And if I can graph those three points then I should be all set with graphing this parabola. So as I just said, we're going to try to solve the equation 5x squared minus 20x plus 15 is equal to 0.
Historical Uses For Evening Primrose. All parts of evening primrose are edible. Native Americans in Utah and Nevada ate the seeds. The young leaves can be used raw in salads or as a potherb. They are usually cooked in several changes of water to get rid of their bitterness.
Evening primrose comes in herbal forms, such as dried leaves and flowers, as well as oils and capsules. The most common use is the capsule form. Most experts recommend a daily dosage of 3000 to 6000 mg of evening primrose oil per day. This yields approximately 270 to 540 mg of GLA in an 8-9% standardized formula.