Question

May u help me grade my homework to make sure all is right?

Answer 1

yeah i think i can

Answer 2

Choose the equation below that represents the line passing through the point (2, -5) with a slope of -3.

y = -3x - 13
y = -3x + 11
y = -3x + 13
y = -3x + 1

Answer 3

u which grade

Answer 4

And what did you get as the asnwer?

Answer 5

Answer*

Answer 6

d :)

Answer 7

D is correct :D

Answer 8

If f(x) is the total number of bacteria present in a sample after x hours, which of the following statements best describes the meaning of f(2) = 12?

The total number of bacteria present in the sample after 12 hours is 2.
The total number of bacteria present in the sample after 6 hours is 2.
The total number of bacteria present in the sample after 2 hours is 12.
The total number of bacteria present in the sample after 6 hours is 12.

Answer 9

c.

Answer 10

Correct :)

Answer 11

If f(x) = x - 4, what does f(3) represent?

The value of (x - 4) when x = 3
The value if x when (x - 4) = 3
The value of 3f(x) when x = 3
The value of f(x) when (x - 4) = 3

Answer 12

a?

Answer 13

Correct!

Answer 14

Good job so far :)

Answer 15

Which of the following statements best describes the effect of replacing the graph of f(x) with the graph of f(x) - 3?

The graph shifts 3 units up.
The graph shifts 3 units down.
The graph shifts 3 units left.
The graph shifts 3 units right.

Answer 16

b.( i will repost my other questions in a few)

Answer 17

Correct once again :)

Answer 18

@Kainui

Answer 19

why do we need him @American.Eagle

Answer 20

How many questions are in your homework? @heymydearpeople

Answer 21

sorry i did mistake

Answer 22

ummm.... hold on let me check i have to count lol

Answer 23

Its ok, me and Kai are friends :) Anyhoot :P

Answer 24

30 srry @TheSmartOne

Answer 25

Is this a test? o.O

Answer 26

but i do not think i will need help w. all of them :D, no a review packet for school

Answer 27

Ok sure then :)

Answer 28

The equation of a line is shown below:

y = - fraction reading 1 over 3 x - 24

What is the equation of a line which is perpendicular to this line and passes through (1, 27)

y = 3x - 24
y = 7x - 24
y = 7x + 24
y = 3x + 24

Answer 29

c o.d confuse about this one @TheSmartOne

Answer 30

Like this?
\[\Large y=-\frac{ 1 }{ 3x} -24\]

Answer 31

Well when they say that a line is perpendicular, then that means the slopes when you multiply them it equals to -1.

Answer 32

ok @TheSmartOne

Answer 33

So for example

\(\Large y= \frac{1}{2}x +3\)

Then
To find the slope that is perpendicular to it
\(\Large\frac{1}{2} \times p = -1\)

Answer 34

And you solve for p to get the perpendicular line :)

Answer 35

can anyone help me. i have a ques to ask. but the ques requires a lot of drawings so thats y it can be posted on openstudy. tell me ur gmail adress and i will email the ques to u and then u can help me. please its midnight in my country and tommorow i have to submit the homework. in my country if u dont do the homework then u get a lot of beatings from the teacher. even i will get beatings. please help me i beg u. i fall on ur feet. i will never forget ur he;p in my life

Answer 36

p=-2

Answer 37

@TheSmartOne

Answer 38

Option C is incorrecct for the bacteria problem

Answer 39

@heymydearpeople That was for the example. Your actual question is :P
\(\Large y=-\frac{ 1 }{ 3x} -24\)

Answer 40

wait nevermind

Answer 41

oh

Answer 42

you're doing good!

Answer 43

^ :D

Answer 44

may you help me w. solving for x that is quite confusing to me srry @TheSmartOne

Answer 45

y=mx+b

m is the slope :)

So they gave us that -1/3 is the slope. So to find the perpendicular slope. We have to find a number when you multiply it by -1/3 it equals to -1