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bogdanovich [222]
2 years ago
5

I need help plz 99 points waiting for the person that answers the question

Mathematics
2 answers:
amid [387]2 years ago
4 0

Answer:

No

Step-by-step explanation:

This is from a website so you might have to rephrase it but Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:

y=kx

for some constant k , called the constant of variation or constant of proportionality . (Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x .")

This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.

The graph of the direct variation equation is a straight line through the origin.

ddd [48]2 years ago
3 0
Any line that crosses through the origin is a direct variation:
y = kx y = kx y = kx
The graph you're looking at isn't a straight line. We can demonstrate this by demonstrating that the slopes of two pairs of points are not equal.
m = (4 - 0) / m = y/x (2 - 0)
m = 2 m = y/x m = (9 - 0) / (3 - 0) m = 3 m = 2 m = 3
As a result, this isn't a direct version.
You might be interested in
Quadrilateral PQRS is a square whos side length is 10. Let X and Y be points outside the square so that XQ = YS = 6 and XP = YR
erik [133]

Answer:

392

Step-by-step explanation:

Triangles XQP and YRS are right triangles because triples 6, 8, 10 are Pythagorean triples.

Extend lines XQ, YR, YS and XP and mark their intersection as A and B.

Quadrilateral XAYB is a square because all right triangles PXQ, QAR, RYS and SBP are congruent (by ASA postulate) and therefore

  • all angles of the quadrilateral XAYB are right angles
  • all sides of XAYB are congruent and equal to 6 + 8 = 14 units.

Segment XY is the diagonal of the square XAYB, by Pythagorean theorem,

XY^2=XA^2+AY^2\\ \\XY^2=14^2+14^2\\ \\XY^2=196+196\\ \\XY^2=392  

3 0
3 years ago
Suppose <br> f '(x) = xe^−x^2
iogann1982 [59]
<h3>Answers:</h3>
  • (a) The function is increasing on the interval (0, infinity)
  • (b) The function is decreasing on the interval (-infinity, 0)

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

Explanation:

You should find that the derivative is entirely negative whenever x < 0. This suggests that the function f(x) is decreasing on this interval. So that takes care of part (b).

The interval x < 0 is the same as -infinity < x < 0 which then translates to the interval notation (-infinity, 0)

Similarly, you should find that the derivative is positive when x > 0. So the function is increasing on the interval (0, infinity)

6 0
3 years ago
“Jessie has 2/3 of a bag of apples that she wants to divide equally among her 5 siblings. What fractional part of the bag
Nesterboy [21]

Answer:

2/15

Step-by-step explanation:

2/3*5

2/3*1/5=2/15

*=multipliy

6 0
3 years ago
Y= 7x - 19<br> y= 3x - 7<br><br> Solve for x and then use X to solve for y. (find x and y)
stepladder [879]

Answer:

(2,3)

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What number complete the fallowing equation? 8×(40+7)=(8×_)+(8×7) A=40 B=47 C=320 D =376
11Alexandr11 [23.1K]

8x40=320 (+) 8x7=56 (=) 376.

A=40

hope this helped


3 0
3 years ago
Read 2 more answers
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