Question

Point G is (2,9) on the graph of f(x) = 3^x, as shown. The coordinates of point G under the transformation f(-2x), are

Answer 1

helpppppp

Answer 2

Substitute -2x for x such that its not 3^(-2x). You're essentially doubling the slope and flipping the parabola upside down. Go from there

Answer 3

It's now* ( not "its not")

Answer 4

so is this the equation... 3^2(2)

Answer 5

i still dont understand can u show me how to write the equation

Answer 6

Close, its just negative

Answer 7

so its 3^-2(2)

Answer 8

3^(-2 * 2)

Answer 9

and is this to find your x value or y

Answer 10

Right. I believe that yields the correct answer but id have to double check

Answer 11

Y. The x value is known as you move along the axis i.e. x=1,2,3,...

Answer 12

ok

Answer 13

i got -18

Answer 14

sorry, i was wrong about the upside down part. its a reflection across the y-axis, not the x-axis

Answer 15

o soooo

Answer 16

i think its going to be (-1, 9) or (-2, 71) ..... 3^4 = 3 * 3 * 3 * 3 remember

Answer 17

i think its -1,9

Answer 18

I think you're probably right!

Answer 19

lol thanks for the help man

Answer 20

anytime....if I realize I was wrong I'll post later

Answer 21

ok