Question

how do i do this.... ahhhhh

Answer 1

Give me one second I'm looking at the formula~

Answer 2

Alright rise over run which is

Answer 3

Lets try not to give out direct answers :o, may you explain how you got the answer?

Answer 4

um...soooo... -49-7 for the top? and 64-4 for the bottom?

Answer 5

No No, you're suppose to put the numbers in the formula then subtract from side to side

Answer 6

so... -12/-14???

Answer 7

Yes

Answer 8

ohhhh thank u!!!

Answer 9

I think he's gotten confused on how to properly apply the formula.

\(\text{Slope} = \dfrac{y_2-y_1}{x_2-x_1}\)
where you have the points \( (x_1, ~y_1)\) and \( ( x_2, ~y_2)\)

Your image has two questions so we have answer it one by one.

(-7, 8) and (-7, -4)

Can you tell what \( x_1,~ y_1, ~x_2,~ y_2\) are?

Answer 10

would i simplify it?

Answer 11

\(\color{#0cbb34}{\text{Originally Posted by}}\) @ThisGirlPretty
No No, you're suppose to put the numbers in the formula then subtract from side to side Created with RaphaëlReply Using Drawing
\(\color{#0cbb34}{\text{End of Quote}}\)
This is wrong and to make matters worse

-9 - 8 \(\neq\) -12
7 - (-7) \(\neq\) -14

Answer 12

how is wrong when it shows it for the formula?

Answer 13

oh...

Answer 14

i think the "9" is actually supposed to be a 4

Answer 15

I was working on the one up top and was gonna have her try and solve the other one on her own to see if she got it

Answer 16

Like I said, the screenshot has two questions.

Question #1
We're trying to find the slope between points (-7, -8) and (-7, -4)

Question #2
We're trying to find the slope between points (-4, -9) and (3, -9)

Answer 17

Have you found your answer cause i can help

Answer 18

i have not found my answr, im very confused

Answer 19

And so the numbers you plugged in don't belong to either question since there is no question asking for the slope between (-7, -9) and (-7, 8)

Answer 20

I'm sorry about that @BabyGurl2006

Let's start from the beginning. Do you know what a point is? And how you would plot a point on a graph?

Answer 21

i do know how to plot points on a graph

Answer 22

\(\color{#0cbb34}{\text{Originally Posted by}}\) @BabyGurl2006
i think the "9" is actually supposed to be a 4
\(\color{#0cbb34}{\text{End of Quote}}\)

Oh, I'm sorry @ThisGirlPretty
I mistook the 4 to be a 9

Answer 23

In that case, there is only one mistake

@BabyGurl2006 You were correct that -4-8 = -12

However, -7 - (-7) does not equal to -14
When you're subtracting a negative number it becomes addition so

-7 - (-7) = -7 + 7

Can you somplify that?
Another way to write -7 + 7 = ?
would be 7 - 7 = ?

Answer 24

0?

Answer 25

Yes. Do you know what happens to a fraction when 0 is in the denominator?

Answer 26

Hint: plot the line

Answer 27

um...it equals 0?

Answer 28

No, if we have 0 in the numerator, or the top part of the fraction, then the entire fraction equals 0.

0/7 = 0
0/12 = 0

When we have 0 in the denominator, or the bottom part of the fraction, then the entire fraction is undefined.

5/0 = undefined
8/0 = undefined

Answer 29

oh...ok

Answer 30

The easiest way to remember this is

You have a box of pizza that is cut into 8 slices. You eat 0 of the 8 slices or 0/8. How many slices did you have?

0.
0/8 = 0

But let's say that you have 8 slices and you want to split it between 0 people. That would be 8/0. And it's not possible to split it between 0 people so it's undefined.

Answer 31

ok

Answer 32

Can you answer the second question now?

Answer 33

ummmm
im still kinda confused lol, sorry i is slow

Answer 34

Remember

\(\text{Slope} = \dfrac{\color{red}{y_2}- \color{purple}{y_1}}{\color{blue}{x_2} - \color{green}{x_1}}\)

where our points are
\( (\color{green}{x_1},~\color{purple}{y_1})\) and \( (\color{blue}{x_2},~\color{red}{y_2})\)

So now we're trying to find the slope between (-4, -9) and (3, -9)

Do you think you can plug the numbers into the formula?

Answer 35

uhm... 3-4/-9-(-9) ???

Answer 36

woahhhh

Answer 37

sir...thats a lil weird

Answer 38

my bad

Answer 39

\(\color{#0cbb34}{\text{Originally Posted by}}\) @BabyGurl2006
uhm... 3-4/-9-(-9) ???
\(\color{#0cbb34}{\text{End of Quote}}\)

You're so close but you flipped the numerator and denominator

We have to keep the y-values on top and the x-values on the bottom

Answer 40

oh lol

Answer 41

ok so -9-(-9)/3-4

Answer 42

and that would be undefined right?

Answer 43

No, there's a difference when the 0 is in the numerator or if it's in the denominator.

Simplify
\(\dfrac{-9-(-9)}{3-(-4)} = ?\)

Answer 44

0/7 ???

Answer 45

Yes and what did we say we can simplify that to when 0 is in the numerator?

Answer 46

think about rise over run

Answer 47

oh yea