Look at the equations below.
4
y = x² + 3; y = x²;
=
y = x² - 5
y
- 5; y = x² +
3
5
Which of the following statements is true for the graphs of all the equations
given?
A. The graphs are congruent and open downward.
B. The graphs open upward and are symmetrical about the y-axis.
C. The graphs are congruent and are listed from narrowest to widest.
D. The graphs open downward and are symmetrical about the y-axis.