Question

May someone please check my answer? :)

What is the slope-intercept form of the function that contains the point (1, –2) and has a slope of –3?

y = x +

Answer 1

I know first off the equation will be y=-3x+b because -3 is the slope and I think the y-intercept is -5 so my answer is \[y=-3x +-5\]

Answer 2

@imqwerty @Hayhayz

Answer 3

Why did you tag me xDDD

Answer 4

I thought you'd know these stuff...

Answer 5

no thats not correct
how did you take c as -5?

Answer 6

I used the Formula: y-y1=m(x-x1)

Answer 7

yes thats correct :) just check your calculations once again

Answer 8

\[y-(-2)=-3(x-1)\] Did I put them in correctly?

Answer 9

yes that is all correct
continue

Answer 10

Now I add 2 to both sides, right?

Answer 11

remember that negative times negative becomes positive

so on the left when you multiply that -2 with outside negative sign you get a positive 2

Answer 12

I think that's where I messed up... May you write the equation now with the Positive 2? I lost track when you just said right now what you said.

Answer 13

yes :)

\(y \color{red}- (\color{red}- 2)=-3(x-1)\)

\(y+2=-3(x)-3(-1)\)

Answer 14

Is my answer \[y=-3x+-1\]

Answer 15

Because I made the Negative twos positive.

Answer 16

its not correct theres a little mistake
u will be getting this->

\(y+2=-3x \color{red} +3\)

Answer 17

So my answer is \[y=-3x+5\]

Answer 18

no
after this equation-> \(y+2=-3x \color{red} +3\)
you have to subtract 2 from both sides

Answer 19

So it is \[y=-3x-1~or~plus~1?\]

Answer 20

\(y+2=-3x \color{red} +3\)
\(y+2-2=-3x \color{red} +3-2\)
\(y=-3x \color{red} +1\)

Answer 21

Thought it was plus 1

Answer 22

yes it is +1

Answer 23

Okay, thank you, @Imqwerty! You're the best! :)

Answer 24

lol ;)) np<3

Answer 25

Can you check this one?

When 40 is added to the number of miles Karen ran last week, the result is the same as adding 10 to 4 times the number of miles she ran last week.

How many miles did Karen run last week?


mi

Answer 26

I think it's 10 miles

Answer 27

yes correct :)

Answer 28

Tickets to a movie cost $9 for each adult and $4.50 for each child. Molly purchased 11 tickets for $72.

How many adult and how many child tickets did she purchase?

Molly purchased _ adult tickets and _ child tickets.

Answer 29

She purchased 5 adult tickets and 6 child tickets, right?

Answer 30

correct :)

Answer 31

Thanks! :)

Answer 32

anytime dude :)

Answer 33

I have 4 more questions for my homework, think you can check em after I'm done?

Answer 34

ofc :)