Question

answer check?

1. What is the opening direction of the parabola with the equation x = –y2?
A. Left
B. Right
C. Up
D. Down
i got c for this


2. http://prntscr.com/556d4u

got A for number 2

3. What is the opening direction of the parabola with the equation x = –y2?
A. Left
B. Right
C. Up
D. Down

my answer was A

4. http://prntscr.com/556djh

got A for my answer

5.http://prntscr.com/556dqr

i got D

Answer 1

#1 and #3 are identical questions

Answer 2

ignore 3 then sorry

Answer 3

actually for one i think its A not C

Answer 4

2A is correct

Answer 5

4A is not correct because that equation is in the form of a hyperbola (not an ellipse)

Answer 6

you made the same mistake with #5

Answer 7

the minus tells us that we're dealing with hyperbolas (the fact that each term is of a different sign)

Answer 8

so 4 is C and 5 is B?
@jim_thompson5910

Answer 9

do you see what I mean about the minus?

Answer 10

have a look at this page

http://www.purplemath.com/modules/hyperbola.htm