Sara is saving her summer earnings for a $500 school trip in the fall. She has $200 in her savings account at the beginning of J
une. Each week, Sara deposits $35 into her savings account. Sara wants to know how many weeks she needs to deposit her money? Which inequality would tell her this?
X2+5x+y2-y=-2 X2+2*5x2+(5/2)^2-(5/2)^2+y2-2*y/2+(1/2)^2-(1/2)^2=-2 (x+5/2)^2+(y-1/2)^2-13/2=-2 (x+5/2)^2+(y-1/2)^2=9/2 So centre =(-5/2,1/2) Radius=(9/2)^(1/2)
