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.
âA 1991 study published in the Journal of Nutrition Medicine found that women with breast diseases or PMS appear to be deficient in GLA â gamma-linolenic acid (essential fatty acid) and might benefit from taking evening primrose oil, notes the University of Michigan Health System.