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.
The foliage of the flower grows plentifully and is spring-green in hue. The brown-eyed evening primrose thrives throughout the Mojave desert region and in desert areas below 6,500 feet in elevation. Plant brown-eyed evening primrose in sandy, well-drained soil in parts of your garden that receive full sunlight. The flowers bloom throughout the summer months in desert climates.