Which of the coordinates presented in the list of options are the vertices of a right isosceles triangle?

Hint: Two sides must be perpendicular and two sides must be equal in length.

A: D (-2,-3), E (-5,-7), F (2,-6)
B: A (-3,2), B (-3,-9), C (2,-4)
C: P (-6,2), Q (1,0), R (-3,-2)
D: X (3,1), Y (-4,-3), Z (-8,3)

Using the completing-the-square method, find the vertex of the function f(x) = 2x2 − 8x + 6 and indicate whether it is a minimum or a maximum and at what point. maximum at (2, –2) minimum at (2, –2) maximum at (2, 6) minimum at (2, 6)

Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.