Question

GRAPHING EXPONENTIAL FUNCTIONS
1. If (-1, y) lies on the graph of y = 3^x+1, then y =
a) 0
b) 1/3
c) 1

2. If (x, 1/100) lies on the graph of y = 10^x, then x =
a) 2
b) -1/2
c) -2

3. If (-1, y) lies on the graph of y = 2^2x, then y =
a) -4
b) 1/4
c) 1

4. What is the relationship between the graphs of y = 2^x and y = 2^-x?
a) reflections over the x-axis
b) reflections over the y-axis
c) reflections over y = x

5. If (3, y) lies on the graph of y = -(2x), then y =
a) 1/8
b) -6
c) -8

6. Which of the following equations is not exponential?
a) y = 1x
b) y = (1/2)x
c) y = -2x

7. If (-2, y) lies on the graph of y = 4^x, then y =
a) -16
b) 1/16
c) 16

8. If (-3, y) lies on the graph of y = 3^-x, then y =
a) -27
b) 1/27
c) 27

9. If (-3, y) lies on the graph of y = 3^x, then y =
a) 1/27
b) -1
c) -27

10. If (-3, y) lies on the graph of y = (1/2)^x, then y =
a) 8
b) 1/8
c) -8

Answer 1

Is the first one

\[3^x+1\]

Answer 2

or\[3^{x+1}\]

Answer 3

the second

Answer 4

Did you replace x with -1?

Answer 5

no

Answer 6

If you want to find y and y = 3^(x+1) when x = -1 then you should replace x with -1

Answer 7

so y = 3^(x-1)

Answer 8

What does the first problem say y is equal to?

Answer 9

3

Answer 10

I guess you are reading a different problem than the one you posted. I am so confused. You posted that y = 3^(x+1) and now you are telling me that y = 3

Answer 11

Supposing you have the following equation:

Answer 12

And I say to you that the point (3,y) is on the graph. What is the value of x I just gave you?

Answer 13

Hello? Are you there?

Answer 14

yes hold up
3?

Answer 15

are you there

Answer 16

Hello? Are you there?

Answer 17

yes

Answer 18

ok could you figure them out?

Answer 19

I can figure them out. Can you?