20 questions
What is the formula for the discriminant?
x = -b/2a
b2 - 4ac
a2 + b2 = c2
x = [-b±√(b2-4ac)]/2a
Given two points (x1, y1), (x2, y2) the distance between them is:
Which of the following is the correct midpoint formula given two endpoints (x1, y1) and (x2, y2)?
What is the perimeter of triangle ABC?
28.2
18.2
32.6
17.6
(3, 1)
(3.5, 1)
(4, 1)
(2, 0)
A diameter of a circle has endpoints (-2, -5) and (2, 1). Find the coordinates of the center of the circle.
(0, -2)
(6, 7)
(-6, -11)
(1, -1)