Merary went to the grocery store and bought S loaves of bread and 2 gallons of milk for $14. The next week, Sarah bought 4 looves of bread and 3 gallons of milk for $13.00. $19 Which system of equations could be used to determine the cost of one loaf of bread (b) and one gallon of milk (m)?

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.

noncoplanar points are points that do not lie on the same line.