What is the domain of the function? y=sqrt(4x+8)

Domain is the half closed interval

Step-by-step explanation:

Given is a function

We are to find the domain of the function

We see that a square root sign is there.  This will be real only if

4x+8 is non negative

Hence condition for domain is

We divide by 4 (a positive value) without disturbing inequality sign.

Hence domain is

a

step-by-step explanation:

a

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: