Question

Determine if the function f is an exponential function. If so, identify the base. If not, why not? f(x) = x^(-3.141)

Answer 1

@BangkokGarrett I have three more questions. Could you help me. I believe this one is not an exponential function?

Answer 2

No. The base is not a constant. It's a variable

Answer 3

Find the y-axis intercept for the function: f(x) = -e^(3x+1) - 5.
(0, -5)
(-e-5, 0)
(-5, 0)
(0, -e-5)

Answer 4

To find a y-intercept, set x=0 and find out what y (or f(x) in your case) equals

Answer 5

Would it be (0, -e-5)?

Answer 6

yes!

Answer 7

For the graph below, which of the following is a possible function for g?
g(x) = (2/11)^x
g(x) = (1/4)^x
g(x) = 3^(-2x)
g(x) = (2/3)^x
Give me a second for the graph

Answer 8

Look at what happens when you plug in -1 to each of those functions
1st one: about 5.5
2nd: about 4
3rd: 9
4th: 1.5
On your graph, what is the value of the blue line when x = -1. It's hard to tell 'cause the y-axis is only marked at 1, but I think I can tell which one it probably is.

Answer 9

Its either the first or second one. I think its the second one?

Answer 10

yeah, me too.

Answer 11

Thank you so much for your help today!

Answer 12

No problem. Are you in England by the way?

Answer 13

No

Answer 14

oh. ok. just wondering, because i saw your file was named "maths.pdf". They say "maths" a lot in England.

Answer 15

oh lol. No I already had a file named math so i just added an s to it.

Answer 16

I see. Good luck with your maths!