The graph of f(x) = x is reflected over the y-axis. use the graphing calculator to graph this reflection. which list contains
three points that lie on the graph of the reflection?
(-81, 9), (-36, , 1)
(1, -1), (16,-4), (36, -6)
(-49, 7). (-18, 9), (-1, 1)
(1, -1). (4.-16), (5,-25)

a

Step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional