Question

Math help plz

Answer 1

I just want someone to check my work. The answer to question 6 is -10 but i’m Getting undefined for some reason plz check. Thanks

Answer 2

Number 6 plz

Answer 3

Something is not right...
You wrote
\[\frac{a b}{c} = \frac{a}{c}*\frac{b}{c}\]
but eh....

Answer 4

Omg lol yes thanks

Answer 5

A+b/ c = a/c + b/c

Answer 6

Why’s the book saying -10? Did i do something wrong?

Answer 7

I’m getting -10/0 = undef

Answer 8

You should go from
\[\frac{(x+5)(x-5)}{(x+5)} = (x-5) \]

Answer 9

It's only that there's a hole at x = -5.
But the limit from the left side and left side go to the same point.

Answer 10

Hmm icy.. btw what’s the rule for...wait let me draw

Answer 11

Did i do something wrong? *~*

Answer 12

Oh I just cancelled them out:
and remind myself that this function is undefined at x = -5.

Answer 13

Oh icy. I’ll note it down. So there’s a hole at x = -5 and -10. K got it

Answer 14

So we basically plugged in x= -5 into a y function to see where that hole is... and that hole represents limit. Because the function is undefined at that particular point

Answer 15

*plugged in x into a y limit*

Answer 16

actually anytime you have something like this:
\[f(x)=\frac{(x-a)g(x)}{(x-a)}\]
where g(x) can be anything,

then f(x) has a "removable discontinuity" at x = a.

Answer 17

I’ll watch a video on this later. I really gotta finish some questions tonight. Thanks for your help tho. Really appreciated :)