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allsm [11]
4 years ago
10

SHOW YOUR WORK!!! Marking best answer as brainliest :))

Mathematics
1 answer:
Wewaii [24]4 years ago
4 0

Answer:

-25

Step-by-step explanation:

You must first pick two points.  I picked the points of (4, 400) and (8, 300).  You can pick different points and still get the right answer.

Subtract the y's and the x's.  Divide the difference of y by the difference of x.

400 - 300 = 100

4 - 8 = -4

100/-4 = -25

The slope, or rate of change, is -25.

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Please Help will Give brainlist.
poizon [28]
Constant of proportionality is 4

equation: x/y = 4

explanation:
let's take 20 and 5 for example, if you divide 20 by 5, you will 4 of course. that's the proportionality for the first one. if you continue to divide x value by y value you will get 4. for the last two you would divide 28 by 4 and multiply 8 by 4.
5 0
3 years ago
Read 2 more answers
Write the equation of the parabola in vertex form. The vertex is
slega [8]

Answer:

y + 4 = (x - h)^2

Step-by-step explanation:

"vertex form" is y - k = a(x - h)^2.  Here, the vertex (h, k) is (-3, -4), and so we have:  

y + 4 = a(x + 3)^2.  To find the coefficient a, substitute -1 for x and 0 for y:

0 + 4 = a(-1 + 3)^2, or

4 = a(2^2).  Thus, a = 1, and the desired equation is

y + 4 = (x - h)^2

8 0
3 years ago
Whats 2+2? im really struggling with this question, pls help
EleoNora [17]

Answer:

its 4

Step-by-step explanation:

1 2 3 4

hope i helped

8 0
4 years ago
Read 2 more answers
What are three equivalent expressions for 3x+3(x+y)
Cloud [144]

3 x + 3 (x + y)

3 (2 x + y)

6 x + 3 y

y = -2 x

y = -2 x (3 (x + y) + 3 x) = 6

(3 (x + y) + 3 x) = 3

(3 x + 3 (x + y)) dx = 3 (x^2 + x y) +

(x^2 + y^2<R^2)(3 (x + y) + 3 x) dx dy = 0

(3 x + 3 (x + y)) dy dx = 0

Step-by-step explanation:

Hope this helps ツ

3 0
3 years ago
Pls help....................
suter [353]

answer:

B

Step-by-step explanation:

   

6 0
3 years ago
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