1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ale4655 [162]
3 years ago
13

-3x+9y=-54 what is the y intercepts

Mathematics
2 answers:
3241004551 [841]3 years ago
5 0
One way to find the y int is to sub in 0 for x and solve for y

-3x + 9y = -54
-3(0) + 9y = -54
9y = -54
y = -54/9
y = -6....so ur y int is -6 or (0,-6)
sergey [27]3 years ago
5 0
Simple...

you have: -3x+9y=-54

If you want to find the yi-intercept of this line you must first re-write it in y=mx+b form-->>

-3x+9y=-54

-3x+9y=-54
+3x      +3x

9y=3x-54

Now divide by 9...

\frac{9y}{9} = \frac{3x-54}{9}

y=\frac{1}{3} x-6

As we can see the y-intercept is located at (0,-6).

Thus, your answer.

You might be interested in
If f(x)=cosx, then f(x+ pi/2) is equal to
weqwewe [10]
The answer must be - cospi/2 which is not available in the option
8 0
3 years ago
NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at Math.No guessing please.
dedylja [7]

Answers:

  • 10
  • decrease
  • increase
  • does
  • incorrect

So it would look like this:

The MAD of the data in the table is <u>  10  </u>.If the additional drawings are Amy's, the MAD of the date set will <u>  decrease  </u>.If they are Emily's, the MAD will <u>  increase  </u>.The MAD of the new data set <u>  does  </u> depend on whether it was Amy or Emily who turned in the additional drawings. So, Greg is <u>  incorrect  </u>.

==========================================================

Explanation:

The MAD will have us find the mean first, which I'll call xbar

To find xbar, we add up the values and then divide by n which is the number of items in the set.

xbar = (sum of items)/n

xbar = (6+34+35+37+43)/5

xbar = 155/5

xbar = 31

Then we'll subtract this xbar from from each x value of the data set. Use absolute value bars to make sure the result isn't negative. This forms the third column in each table shown below. The value in yellow is the average of the stuff in the third column (ignoring the yellow value itself of course). So that's how we get a MAD of 10 for the original data set.

--------------------

When we consider case 1, which is where Amy made those 25 additional drawings, then her count goes from 6 to 6+25 = 31. We repeat the steps earlier and we get a MAD of 3.2, which is a decrease from 10 earlier.

Why is this? Well notice how Amy's count, before those 25 extra drawings were done, was far lower than the rest of the class. Her being an outlier will make the MAD fairly big. The larger the MAD, the more spread out the data is. If you condense the data set, then the MAD shrinks.

-----------------------

Now onto case 2. We'll reset Amy's count back to 6 and instead add 25 to Emily's count to go from 43 to 43+25 = 68

This will increase the MAD because we're effectively spreading the data out more (since Emily's value is becoming more of an outlier). The same steps to compute the MAD will be done as earlier. This time we get 13.2 as the MAD.

-----------------------

Referring back to the previous 2 sections, we can see that the MAD of the new set will depend on whether Amy or Emily submitted those 25 extra drawings. Therefore, Greg is incorrect in thinking that the MAD will stay the same.

The only time the MAD stays the same is if we can keep the spread of the data the exact same. That would mean we have to add the same number to each person to keep things balance. Think of it like a see-saw. If we add something to one side, then we have to do the same thing to the other side; otherwise, things will change.

8 0
2 years ago
Read 2 more answers
SOMEOME HELP this is my third time posting those SERIOUSLY HELP ME PLEASE
Hoochie [10]

The correct answer is C (7, 9)

Firstly we know that each point is 6 away from the other in terms of x and in terms of y. Now we also know that for every 6, we will be one away from point B and five away from point A. We know this because the ratio is AB 5:1, meaning that the 5 is on the A side (they both come first).

So, we can just add 5 to each of the A value numbers to get point P.

A = (2, 4)

P = (2+5, 4+5)

P = (7, 9)

6 0
3 years ago
Help me w the answer
Olin [163]
I have no clue. im on that same question
3 0
3 years ago
What is the equation of the line that passes through the point (-1, -7) and has a<br> slope of 2?
slava [35]

Answer:

y=2x-5

Step-by-step explanation:

The slope-intercept form of an equation looks like y=mx+b. Where m is the slope and b is the y-intercept. The slope is already given to us, so m is 2.

To find b use the equation b=y_1-m*x_1. So, to find the y-intercept use b=-7-(2*-1). This equals b=-5.

So, plug in the values to get the final equation y=2x-5.

7 0
2 years ago
Read 2 more answers
Other questions:
  • The difference in the x-coordinates of two points is 3, and the difference in the y-coordinates of the two points is 6. What is
    8·2 answers
  • What is (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x), simplified?
    12·2 answers
  • END OF GRADING CYCLE AND SO MANY MISSING ASSIGNMENTS PLEASE HELP
    13·1 answer
  • 1. 2(d + 9)<br> What is the answer to this question
    11·1 answer
  • PLEASE HELP 100 points and brainliest.<br> y= 3x — 5<br><br> y=6x — 8<br> solve with elimination
    15·1 answer
  • Identify the monomial function described as odd or even, and indicate whether a is positive or negative. As x &gt; 0 increases,
    12·1 answer
  • 3)<br> What is the range of this function?
    9·1 answer
  • Your meal plan allows you 500 dollars to use per month. So far this month, you have used 345 dollars and you have 9 days left on
    9·1 answer
  • Who want head...no but frr?​
    9·1 answer
  • Dont know this answer
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!