Question

help please
http://prntscr.com/15fnzu

Answer 1

First, for domain you should read the x-axis and it goes from 0 to infinity,

Answer 2

Then, for range, look at the y-axis, it started at -1 to infinity

Answer 3

Yeah

Answer 4

Alright but these are just for practice right? I mean you can't post exam graded questions on os you know?

Answer 5

ok

Answer 6

For the function quesiton, that is not a function, because for a same domain you have different range

Answer 7

Yes

Answer 8

What do you think? The point-slope form is
\(y-y_1=m(x-x_1)\)
Where coordinates are \((x_1,y_1)\)

Answer 9

Careful

Answer 10

If you used the coordinates you get
\[y-(-7)=-\frac{1}{3} (x-(-5))\]
and
\[y-(-6)=-\frac{1}{3}(x-(-8))\]

Answer 11

Yes

Answer 12

looks right

Answer 13

http://prntscr.com/15fqyy

Answer 14

Yeah

Answer 15

what's your guess?

Answer 16

There's no restrictions for domain on this

Answer 17

But x can't be 9, because from the denominator you'll get 81-81

Answer 18

not quite, solve the denominator =0 to find the x values that aren't included in the domain

Answer 19

*set the denominator =0

Answer 20

you're right