1. The point (4,-2) is the vertex of the graph of a quadratic function. The graph of this quadratic function by first finding two additional points on
points (8,6) and (2,0) also fall on the graph of the function. Complete the
у
the graph
1A
8
6
4
2
10
-8
-6
-4
-2.
0
4
6
AC
8
2
-2
-4
-6
-8
-107
Part A: What is the y-intercept of the graph?
Part B: What are the x-intercepts?
Part C: Find the interval on which the rate of change is always positive.
Part D: What is the sign of the leading coefficient for this quadratic
function? How do you know?