Question

The graph below shows three functions:

Graph of function f of x equals 0.5 to the power x. Graph of function g of x is a line segment with holes at endpoints connecting negative 1.8, negative 3 and 1, 3.8. Graph of p of x is a line segment connecting negative 1.7, 2.3 and 1, negative 4.2.

Which function has all real numbers as its domain?
Only f(x)
Both g(x) and p(x)
Both f(x) and g(x)
Only p(x)

Answer 1

@CBARREDO1

Answer 2

You know what are real numbers, right?

Answer 3

yes @CBARREDO1

Answer 4

@CBARREDO1

Answer 5

Ok, I'm going to give you the formulas
\[f(x)=0.5^x\]
\[g(x)= (-1.8,-3) (1,3.8)\]
\[p(x)=(1.7,2.3) (1,-4.2)\]

Answer 6

Of this formulas which one contains only real numbers?

Answer 7

1

Answer 8

There xD

Answer 9

@CBARREDO1 it is A?

Answer 10

I think so :)

Answer 11

1 more please

Answer 12

Which of the following shows the correct steps to find the value of 16 to the power of 1 over 4?

Answer 13

@CBARREDO1

Answer 14

What are the options?

Answer 15

16 to the power of 1 over 4 equals 2 to the power of 4 to the power of 1 over 4 equals 2 to the power of 4 multiplied by 1 over 4 equals 2
16 to the power of 1 over 4 equals 4 to the power of 4 to the power of 1 over 4 equals 4 to the power of 4 multiplied by 1 over 4 equals 4
16 to the power of 1 over 4 equals 2 to the power of 8 to the power of 1 over 4 equals 8 to the power of 8 multiplied by 1 over 4 equals 4
16 to the power of 1 over 4 equals 8 to the power of 2 to the power of 1 over 4 equals 2 to the power of 2 multiplied by 1 over 4 equals 8

Answer 16

@CBARREDO1

Answer 17

Which of the following shows the correct steps to find the value of 16 to the power of 1 over 4?
\[(16)^1/4=(2^3)^1/4=2^3*1/4=2^1=2\]

Answer 18

power of 2 sorry

Answer 19

D is the answer

Answer 20

The amount of a radioactive material changes with time. The table below shows the amount of radioactive material f(t) left after time t:

t(hours) 0 1 2
f(t) 180 90 45


Which exponential function best represents the relationship between f(t) and t?

f(t) = 0.5(180)t
f(t) = 180(0.25)t
f(t) = 180(0.5)t
f(t) = 0.5(50)t

Answer 21

@CBARREDO1

Answer 22

Who would think I would end up doing algebra in the summer? I don't get paid enough for this xD

Answer 23

XD

Answer 24

f(t) = 180(0.5)t

Answer 25

Which of the following is an equivalent function to the function below?

f(x) = 30(1.03)3x @CBARREDO1

Answer 26

@CBARREDO1

Answer 27

@CBARREDO1

Answer 28

HELPPPPPPPP

Answer 29

The table below shows the functions to represent the sale f(t), in thousands, of four companies in t years:

Company A B C D
Sale f(t) = 1.05t f(t) = 0.75t f(t) = 1.212t f(t) = 0.9712t


Which of the following companies showed an exponential growth in sale?

Answer 30

forget the other one please do the one above this comment

Answer 31

@CBARREDO1 @carolinar7

Answer 32

So in order for it to grow, base need to be greater than 1. Make sense? if you repeatedly multiply number, bigger than 1, by itself, it will grow bigger and bigger

Answer 33

Either B or D