Question

B0RF

Answer 1

B0RK

Answer 2

@3mar

Answer 3

ok.

Answer 4

no...

Answer 5

well yes before this one

Answer 6

no

Answer 7

@563blackghost

Answer 8

Change Line N to slope-intercept as well...

\(\huge\bf{4x+y=-8}\)

First subtract `4x` from both sides.

\(\huge\bf{y = -4x - 8}\)

Answer 9

What are your options for choosing?

Answer 10

perpendicular, parralel, or niether

Answer 11

So we have...

\(\huge\bf{y=4x-2}\)
and
\(\huge\bf{y=-4x-8}\)

If these were perpendicular one slope would be `4` and the other would be `-1/4` but we do not have that. Parallel lines would have the same slope as you can see we have `-4` and `4` so they are not parallel so it would be neither.

Answer 12

one more question @563blackghost

Answer 13

and congrats for hitting 98

Answer 14

Thank you prince :)

Answer 15

We would find the slope....

\(\huge\bf{\frac{rise}{run} \rightarrow \frac{y_{2}-y_{1}}{x_{2}-x_{1}} \rightarrow \frac{-8 - 7}{3 - (-7)}}\)

What is the slope?

Answer 16

-15 and 10

Answer 17

Good :) Now we simplify...

\(\huge\bf{-\frac{15}{10} \div \frac{5}{5} = ?}\)

Answer 18

-3/2

Answer 19

Correct :)

So it has a rise of `-3` and a run of `2` so the slope is `-3/2`.

Answer 20

for what line?

Answer 21

For Line R.

Answer 22

now for line S

Answer 23

We would do the same process.

\(\huge\bf{\frac{rise}{run} \rightarrow \frac{y_{2}-y_{1}}{x_{2}-x_{1}} \rightarrow \frac{-5 - 4}{7-1}}\)

Answer 24

-9/6

Answer 25

@563blackghost

Answer 26

Nice, Now simplify.

\(\huge\bf{-\frac{9}{6} \div \frac{3}{3} = ?}\)

Answer 27

-3/2

Answer 28

@563blackghost

Answer 29

So we enter the same numbers for Line S.

So it has a rise of -3 and a run of 2 so the slope is -3/2.

Answer 30

welp, i need to redo the test again, can you help me through?

Answer 31

@563blackghost

Answer 32

@563blackghost

Answer 33

You would find the slope of each point.

A\(\huge\bf{\frac{6-1}{4-3}}\)

B\(\huge\bf{\frac{5-15}{2-4}}\)

C\(\huge\bf{\frac{3-4}{11-6}}\)

D\(\huge\bf{\frac{7-6}{8-3}}\)

Which is equal to a slope of 5?

Answer 34

A, C, and D

Answer 35

You are right with A but not C and D.

\(\huge\bf{\frac{5-15}{2-4} = \frac{-10}{-2} \rightarrow 5}\)

Answer 36

so just A and B?

Answer 37

@563blackghost

Answer 38

Correct :)

Answer 39

We would use the same process.

A\(\huge\bf{\frac{9-7}{4-1}}\)

B\(\huge\bf{\frac{11-8}{3-1}}\)

C\(\huge\bf{\frac {-7-(-1)}{5-14}}\)

D\(\huge\bf{\frac{-6 - (-3)}{2-0}}\)

Answer 40

For it to be perpendicular, the fraction will flip its numbers and sign so a perpendicular slope would be `2/3`

Answer 41

A is one of them

Answer 42

Correct :)

Answer 43

There is one more.

Answer 44

D?

Answer 45

@563blackghost

Answer 46

Not quite.

Answer 47

Remember it has to equal `2/3`

Answer 48

B

Answer 49

@563blackghost

Answer 50

otacon me: @563blackghost whats wrong?...... @563blackghost ? .....@563blackghost !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 51

...

Answer 52

So so sorry its seems as though Im not receiving your mentions.

Answer 53

Not quite.

\(\huge\bf{\frac {-7-(-1)}{5-14} \rightarrow \frac{2}{3}}\)

So it is A and C.

Answer 54

@563blackghost