Example Find the equation of the line of symmetry and the coordinates of the turning point of the graph of y = x 2 6 x + 4. Writing y = x 2 6 x + 4 in completed square form gives y = (x 3) 2 5.

A parallel coordinate - which compares the relations between specific pollutants (at most four items); A scatter plot matrix - which helps users identify correlation between different variables. Our ...

Here, we define a requirement for neural activity in mobilizing the antioxidant defenses of the nematode Caenorhabditis elegans both during chronic oxidative stress and prior to its onset. We show ...

Scientists have devised a new method for mapping the spottiness of distant stars by using observations from NASA missions of ...

The annual clock of the seasons—winter, spring, summer, autumn—is often taken as a given. But our new study in Nature, using a new approach for observing seasonal growth cycles from satellites, shows ...

Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while ...