Question

Help with precalculus question: if this is the graph of f(x)= a^(x+h)+k, then:
A. K>1
B. a>1
C. a<0
D. 0 11 years ago

Answer 1

a>1

Answer 2

why?

Answer 3

Okay when a<0 the graph should open down.
when a>0 it opens up and it will look like it is touching the horizontal line y=-4 in this case
in the case F(x)=4X^2 for example it will it will touch the x axis before it will go up of down

Answer 4

C is not true so we are left with A and B only
and since (h,k)=(0,-4) then k<1 not k>1

Answer 5

I'm sorry, when a>1 not a>0. this is the case when it touches the horizontal line k=-4 in you case

Answer 6

@solidrebirth

Answer 7

ok

Answer 8

If you're familiar with parabolas when 0<a<1 the graph will be stretched and will look very tiny

Answer 9

thank you

Answer 10

Oh, no wait. I'm saying things the opposite. if it's 0<x<1 it will touch the horizontal line Y=k
Not when a>1. a>1 it will look smaller. Sorry!

Answer 11

So the answer is D

Answer 12

@solidrebirth