Each equation given below describes a parabola. which statement best
compares their graphs?
y=-3x2
y=-7x2
a. both parabolas open to the left, and y = -7x2 is wider than y=-3x2
o
b. both parabolas open downward, and y = -7x2 is wider than y=-3x2.
o
c. both parabolas open to the left, and y = -3x2 is wider than y = -7x2.
o
d. both parabolas open downward, and y = -3x2 is wider than y = -7x2.