Answers:
a) downward
b) axis of simmetry is x = 1
c) y-intercept is at y = 8
x-intercepts are at x = -2, 4
First, we need to see if the parabolla is open upwards or downwards. We can see that at the bottom of the graph, the parbolla has two separated lines, get more apart from each other. This means that the parabolla is open downward.
The axis of symmetry is the x value of the vertex. We can see that the vertex is at x = 1. Thus the axis of symmetry is x = 1
The y intercepts are when the function touches the y axis, we can see in the graph that the y-intercept is at y = 8
The x-intercepts are the point where the function touches the x axis. We can see that x = -2, 4 are x-intercepts.