Question

-y - 2 = x + 1 is a decreasing function

Answer 1

make it a function of y respect to x

Answer 2

Yes. If you put it in the form: \(\sf \color{red}{y=mx+b}\) You will see

Answer 3

ok so it is increasing y=-2x+1

Answer 4

what makes you say it's increasing?

Answer 5

sorry decreasing

Answer 6

Yes.

Answer 7

okay right!

Answer 8

god help us
it is not your fault, but
\[-y - 2 = x + 1\] is not a function at all
it is an equation

Answer 9

It's a linear function, no?

Answer 10

I have it in my homework it says if it is increasing or decreasing

Answer 11

yes

Answer 12

no it is not a linear "function"
it is an equation for a line
thus beginning the long confusion between the concept of "function" and "equation"
it is not your fault
just bad math teachers

Answer 13

aaaa

Answer 14

anyway what they want you to do is solve for \(y\)
\[-y - 2 = x + 1\]
\[-y=x+3\]
\[y=-x-3\]

Answer 15

but is it increasing or decreasing

Answer 16

and then say "since the slope is negative, it is decreasing

Answer 17

\[y=-x-3\\y=mx+b\]
\[m=-1\] so it is decreasing

Answer 18

ok thank you. was not sure

Answer 19

yw sorry you have such a crappy book

Answer 20

y = -5x + 4 so this one is increasing right

Answer 21

i meant decreasing sorry didnt see the -

Answer 22

yeah, decreasing

Answer 23

k thanks