Music may people relax. john got two groups of people together. he took everybody's pulse of blood pressure. the one group to listen to soothing music while other group sat in silence. after the song was over, he measured everyone's pulse and blood pressure. what is the independent variable? what is the dependent variable? what are the constants or control variables?

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step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.