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3 years ago

Do all direct proportional graphs need to start from the origin?

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

8 0

Answer:

Direct proportional graphs do not need to start from the origin.

Step-by-step explanation:

Direct proportional graphs do not need to start from the origin. However, all direct proportional graphs must go through the origin.

Regardless of the value of the constant of proportionality, k, the graph of the lines all go through the point of origin, (0, 0).

As a proof, the attached screenshot shows the graph of three equations of direct variations. The graphed direct variation equations, y = 2x, y = -2x, and y = ¼x all go through the point of origin.

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Answer to : 66 - 1/3f > -300

elena55 [62]

Answer:

f=1,098

Step-by-step explanation:

subtract 66 from -300
now you have -1/3f=-366
multiply by the reciprocal of -3
you have your answer

4 0

3 years ago

Responda abaixo: a)2x+3y=10*√4 b)x+2y+5*3=x+y

RoseWind [281]

Answer:

a) x = 10 + -1.5y

b) y+15

Step-by-step explanation:

a)2x+3y=10*√4

2x+3y=20

2x + 3y + -3y = 20 + -3y

2x + 0 = 20 + -3y

2x = 20 + -3y

x ÷ 2 = (20 + -3y) ÷2

x = 10 + -1.5y

b)x+2y+5*3=x+y

x+2y+15=x+y

x+2y+15 - y=x+y - y

x+y+15 =x

x+y+15 - x =x - x

y+15

5 0

4 years ago

3b – 7 < 32 I don't know the answer help !!

Nuetrik [128]

If your solving for B then its B<43/3

7 0

4 years ago

Read 2 more answers

Find the sum of all integers 30 to 80, INCLUSIVE. (Is there a formula to do this?)

Marina86 [1]

Yes there is actually a formula for this. This is an arithmetic progression with a common difference of 1.

The sum of terms can be solved by using the formula

S = (n/2) * (a1 + an)

where S is the sum of the terms
n is the number of terms
a1 is the first term
an is the last term

we can calculate the number of terms, n by using the formula

an = a1 + (n-1)*d

d is the common difference equal to 1

therefore n = 51

substituting to the first equation

S = 2805

4 0

3 years ago

Ana is 555 years younger than her sister, Beatriz. 1. Write an equation that represents how old Ana is (a) when Beatriz is b yea

White raven [17]

Answer:

1. B-555

2. -532

Step-by-step explanation

1. Since Ana is 555 years younger you would have to find the difference between their ages, since Ana is younger you would subtract her age, B, from her sister's, Beatriz age, who is 555 years older.

2. If Beatriz is 23 and Ana is 555 years younger you just subtract 555 from 23, which is negative 532

5 0

2 years ago

Read 2 more answers