Question

I have no idea how to do this. does anyone know? (Best answer gets medal)

Answer 1

Slope intercept form is: y = mx + b
m is slope, and b is y-intercept, does that give you an idea on how to start?

Answer 2

sort of but all they give me for the first one is the x intercept and some confusing stuff....lol

Answer 3

It is saying, the line that you are trying to describe, is at a 90 degree angle from the line y = 1/2x -1.

Answer 4

if x is 4 then 1/2x-1 would be 1 right?

Answer 5

The x-intercept is where the line you are trying to describe touches the x-axis, not the line y= 1/2x -1

Answer 6

I'll give you another hint, y = 1/2x -1 looks like it is already in slope-intercept form, so what does this equation tell you about y= 1/2x -1?

Answer 7

Remember, slope intercept form is y = mx + b, and m is the slope of the line, and b is the y-intercept of the line

Answer 8

The two things you should never ask JA are System of equations and this worthless stuff ^

sorry :/

Answer 9

lol its okay. thanks for taking a look at it for me though :) @JA1

Answer 10

No problem :)

Answer 11

@Gio123 did you get your question answered?

Answer 12

so the line has to have all those 3 characteristics?

Answer 13

No they are 3 seperate questions and i already found out the first one so only the 2 and 3 @timo86m @ybarrap

Answer 14

plug in what you know :)

Answer 15

parallel just means same slope obviously

so y=mx+b and m = is slope then you must have same slope of m.

Answer 16

so 2 is

y=2/3 x + b and plug in the rest

7=2/3 *7+b now solve for b

Answer 17

were did the second 7 come from?

Answer 18

Just to make it look a little more clear:

Perpendicular to \(y=\frac{1}{2}x-1\) x-intercept at 4.

Parallel to \(y=\frac{2}{3}x+6\) and passes through \((6,7)\)

Parallel to \(y=-\frac{1}{4}x-2\) x-intercept at 4.

Answer 19

7=2/3 *+b now solve for b

Answer 20

strange os is not leeting me fix it. suppose to be a 6

Answer 21

since you are given an x,y pair plug those in.6,7

Answer 22

im confused.....

Answer 23

7=(2/3) *7+b
y m x
b=7/3 if you solve for it
then simply put it back into y=mx+b

y=(2/3)x+(7/3)

Answer 24

thank you so much @timo86m . Were did you learn to be so good at math?

Answer 25

I know he brought up the \(\|\) slope, but did you get the \(\perp\) slope rules between lines?

Answer 26

@e.mccormick do you know the answer for the third question?

Answer 27

Parallel lines have the same slope. Perpendicular lines have negative inverse slopes. That tells you the slope of any of these three. Then you use the other information to plug into the formula and solve.

Answer 28

I didn't work it. I know how to answer it. But with what I said, and the one timo86m worked, can you see how to do it?

Answer 29

Well, it is parallel... so what is the slope?

Answer 30

is it -1/4 ?

Answer 31

YES!

Answer 32

So, you have a slope. Now, do you know one point on that line?

Answer 33

Parallel to \(y=-\frac{1}{4}x-2\), x-intercept at 4. \(\leftarrow\) it is hiding in this last bit.

Answer 34

can someone help me please anyone. with the third question..

Answer 35

@robtobey please do #3 please.

Answer 36

whoever does i will be come there fan and give them a metal.

Answer 37

@HonorsStudent please answer the 3rd question for me :)

Answer 38

yeah, please answer it with the steps easily read so i can find out how to do it for the rest of the problems please.

Answer 39

@Gio123

Think about "x intercept at 4" . x intercept is where the line crosses the x axis. The crossing point is (x,0). You have the slope, -1/4 from the given line. Now solve for b now that you know x, y and the slope.

Answer 40

Last question basically gives you b in the equation y=mx + b. Since this is parallel to the first equation, you also know the slope, m. Then you're done!

Answer 41

A plot of the two lines is attached. I leave it to you to identify the equation for each one.

Answer 42

so would this be the equation i have to solve for after everything is pluged in? 0=-1/4(4)+b

Answer 43

I deleted all of my notes related to your problem, however, I believe that is the case.

Answer 44

is this right? does b=1?