Which pair of equations generates graphs with the same vertex?
a) y = –(x + 4)2 and y = (x – 4)2
b) y = –4x2 and y = 4x2
c) y = –x2 – 4 and y = x2 + 4
d) y = (x – 4)2 and y = x2 + 4

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

x-3y=4

step-by-step e