2.
What is the slope of the line represented by the table
of values below?
-20
-- 10
0
10
A. 2
B. 3
C. 10
D. 20

In a quadratic function of the form ax^2+bx+c, which of the following is not true? a. the y-intercept is c. b. if a is positive, the parabola opens up. c. the vertex has an x-coordinate of -b/2a. d. the axis of symmetry is the line y=-b/2a.