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 oil is likely safe when taken by mouth in suggested doses for up to one year for premenstrual syndrome (PMS), breast pain, or eczema (atopic dermatitis). Evening primrose oil may cause low blood pressure. Caution is advised in people taking drugs or herbs and supplements that lower blood pressure. Evening primrose oil may increase the risk of bleeding. Caution is advised in people with bleeding disorders or taking drugs that may increase the risk of bleeding. Dosing adjustments may be necessary. Use cautiously in people with seizure disorders or mania.