If two lines are parallel, which statement must be true?
) a. the two lines have zero slopes.
b. the two lines have undefined slopes.
c. the two lines have the same slope.
d. the two lines have opposite slopes.

c

Step-by-step explanation:

up

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.

could you give more information?