1. Determine if the graph of the equation y = 16 - x^2 is symmetric with respect to:
a) the x-axis (yes or no, w/ brief explanation)
b) the y-axis (yes or no, w/ brief explanation)
c) the origin (yes or no, w/ brief explanation)
d) Find the x-intercept(s).
e) Find the y-intercepts(s).
2. Given the equation of a circle, find the center and the radius.
x^2 + y^2 + 5x - 2y + 6 = 0
3. Write the equation in general form of the line that contains the point (7,3) and is parallel to the line passing through the points (1,1) and (-1,5).
Any help is appreciated, thanks!