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3 years ago

This graph shows a proportional relationship.

Mathematics

1 answer:

ASHA 777 [7]3 years ago

8 0

Answer:

$k=\frac{3}{2}$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have the point (1/4,3/8)

The constant of proportionality k is equal to

$k=\frac{y}{x}$

substitute the value of y and the value of x of the given ordered pair

$k=\frac{3}{8}:\frac{1}{4}$

Multiply in cross

$k=\frac{3*4}{8*1}=\frac{12}{8}$

Simplify

$k=\frac{3}{2}$

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What are the coordinates of point B?

zaharov [31]

Point a is at (-2,4) => (x1,y1)

Midpoint is (2.5, 3.5) => (a,b)

Point B is (x2, y2)

To find midpoint we use formula

$(a=\frac{x_1+x_2}{2} , b= \frac{y_1+y_2}{2})$

a= 2.5, b= 3.5, x1= -2 and y1= 4

Plug in all the values and findout x2, y2

$(2.5=\frac{-2+x_2}{2} , 3.5= \frac{4+y_2}{2})$

multiply 2 on both sides to remove fraction

(5 = -2+x2 , 7 = 4+ y2)

5 = -2+x2, so x2= 7

7 = 4+ y2, so y2= 3

The point B is ( 7, 3)

3 0

3 years ago

(20 POINTS AND BRAINLIEST FOR BEST)

pav-90 [236]

Ending position (in order)

+ 4

+ 3

+ 7

+ 3

- 2

- 1

+ 6

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Hope this helps :)

4 0

2 years ago

Read 2 more answers

I need explanation and answer please,thanks.

Alla [95]

What’s the question?

3 0

3 years ago

Which Question Has roots of x= -2 and x

vazorg [7]

See explanation below.

Explanation:

The 'difference between roots and factors of an equation' is not a straightforward question. Let's define both to establish the link between the two..

Assume we have some function of a single variable

;

we'll call this

(

)

Then we can form an equation:

(

)

Then the "roots" of this equation are all the values of

that satisfy that equation. Remember that these values may be real and/or imaginary.

Now, up to this point we have not assumed anything about

)

. To consider factors, we now need to assume that

(

)

(

)

⋅

(

)

That is that

(

)

factorises into some functions

(

)

(

)

If we recall our equation:

(

)

Then we can now say that either

(

)

(

)

.. and thus show the link between the roots and factors of an equation.

[NB: A simple example of these general principles would be where

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is a quadratic function that factorises into two linear factors.

4 0

2 years ago

What's the answer to this? Or how do I figure it out?

trapecia [35]

B.) 14/43
1&2 =7+7
= 14
Bottam:
14 + 8 +6 + 9 +6
= 43
Lastly
= 14/43

6 0

2 years ago