Question

Can someone help me with a few slope questions?

Answer 1

Sure, I can check them out and see if I can

Answer 2

Okay thank you @jennithemeani

Answer 3

Which is an equation in point-slope form for the given point and slope?

Point: (2,-6) ; Slope: -3/4

A.
https://static.k12.com/bank_packages/files/media/mathml_e270a18cf8155177cf138d21be7245fd69477da1_1.gif

B.
https://static.k12.com/bank_packages/files/media/mathml_9cfd336a71c1743ca4f81bbf51bf8b977048ebcc_1.gif

C.
https://static.k12.com/bank_packages/files/media/mathml_2f828418d7204d7b683fe9b68dcb28b6d51e6ac8_1.gif

D.
https://static.k12.com/bank_packages/files/media/mathml_21da9aa44ac956812a2a599263ed0de7426493d1_1.gif

Answer 4

Oh okay yeah haha I got this

Answer 5

First thing you have to know is the point slope form formula, do you know it?

Answer 6

Probably not

Answer 7

No worries, I didn't know it until algebra 2 haha
Well it is
\[y-y1= m(x-x1)\]
Do you know what y1, x1 or m is?

Answer 8

I know that y1 is 2? or is it -6? I'm pretty sure that m = slope

Answer 9

y1 is -6 and x1 is 2 imagine (x,y) then transfer it to (2,-6) So you know which is which yep, m is slope now just put everything into place

Answer 10

\[y+6=-3/4 (x-2)\]

Answer 11

Oh wow i was way off

Answer 12

That is the equation in slope intercept form, since it's not asking you to solve your done :)

Answer 13

Haha, no worries just keep practicing. What were you doing wrong before?

Answer 14

I thought it was y+(-6)

Answer 15

Could you help me with a few more?

Answer 16

no it is y- (-6)= m(x-2)
But since two negatives make a positive you make it
y+6=m(x-2)

Answer 17

I totally forgot about that. I haven't done integers sine like 6th grade.

Answer 18

Lucky! They can get kinda annoying and are SUPER easy to miss and just one wrong sign screw up the whole equation

Answer 19

since**

Answer 20

Any more questions or is that it?

Answer 21

I have four more... Could you help me?

Answer 22

Yes :)

Answer 23

What is the point-slope form of the equation of a line that passes through the point (1, 4) and has a slope of −3?

Answer 24

just plug in the given values into point slope form y-y1= m(x-x1)

Answer 25

y-y1=m(x-x1)
y-4=-3 (x-1)
Yep just plug them in :)

Answer 26

That's it?

Answer 27

Yep, you can try them yourselves and I can check them if you want :)

Answer 28

thank you (: I guess it' seems harder than it is

Answer 29

Okay thank you (:

Answer 30

Which equations are equations for the line shown?

Choose all answers that are correct
A https://static.k12.com/bank_packages/files/media/mathml_b63722fedf4d9de90f816bfd20421e9edd67ec90_1.gif
B
https://static.k12.com/bank_packages/files/media/mathml_11af73452edd9d3ecc9ac98e901d0f1929353ad9_1.gif
C
https://static.k12.com/bank_packages/files/media/mathml_bf3bbc503082e7bbf45175765f4c7846c910fc8b_1.gif
D
https://static.k12.com/bank_packages/files/media/mathml_39e3982abc12f7a1a44c458fe045729e1cdc8b94_1.gif

Graph:
https://static.k12.com/calms_media/media/1511000_1511500/1511273/1/8cb79430986ea09dc1933c14b634c7da7ba42cf8/MS_IMC-140804-180203.jpg
For this one i got D

Answer 31

A yearbook printer charges based on the number of pages printed. Here is a table that shows the cost of some recent yearbooks:

https://static.k12.com/calms_media/media/241500_242000/241736/1/ba4f4a8c374db4825eb2e52a5d38ac0ace85d489/07_08_LQ_4.gif
Which equation gives the cost, y, in terms of the number of pages, x?

A.
y = 0.012x + 1.25

B.
y = 0.012x + 0.65

C.
y = 83.3x + 0.65

D.
y = 0.012x + 49.985

Answer 32

For this one I got C

Answer 33

@jennithemeani

Answer 34

First one is perfect :)

Answer 35

YAAAAAAASSSSSSSSSSSSSSSSSSSS
Thank you!!

Answer 36

And I have a fifth one but I didn't post it because I need a little help with it.

Answer 37

@jennithemeani

Answer 38

Give me a sec for the last one

Answer 39

Okay (: Sorry

Answer 40

Alright, im not 100% sure for that one but I think it's c. That would be my best guess

Answer 41

Sweet!! Thank you so so much!! Could you help me with the last one? Its got some sort of graphing thing that I don't quite get.

Answer 42

Sure

Answer 43

Which equation is graphed here?
https://static.k12.com/calms_media/media/1312500_1313000/1312639/1/5634cf4cc78c5f954e9151076931e1346ad3a658/HS_A1G2_S1_07_08_ART1.jpg

Answer 44

A
https://static.k12.com/bank_packages/files/media/mathml_a4db8a2a5147e878c2791ed6a435ccf1882b82bc_1.gif
B
https://static.k12.com/bank_packages/files/media/mathml_a14ac1d777c5a28ae8b9726ae9f17b72f62de0ef_1.gif
C
https://static.k12.com/bank_packages/files/media/mathml_17c8fcabbd504a60e0cc02c923716d182da043d7_1.gif
D
https://static.k12.com/bank_packages/files/media/mathml_f8d57d9c2d964deca5526ef8af29c8343cb98eb7_1.gif

Answer 45

https://static.k12.com/bank_packages/files/media/mathml_a14ac1d777c5a28ae8b9726ae9f17b72f62de0ef_1.gif
This one Let me explain it

Answer 46

The slope is rise over run making the slope -3/2 because you go down 3 then to the right 2

Answer 47

Now for the variables choose the opposite so if y-4=-3/2(x+2)
then y=4 and x=-2
Check to see if they are on the graph and if they are you got it

Answer 48

They are. Thank you so so much for helping me with this!!

Answer 49

I only got a 60% though

Answer 50

What a shame :( which ones were wrong?

Answer 51

Number 3 was c and d and number 4 was b