Write an equation of the circle graphed below. x= 1 and y=-1 and the radius is 2?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Which of the following parabolas opens up?

Which of the following vectors are orthogonal to (2,1)? check all that apply