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3 years ago

Which graph shows a proportional relationship?

Mathematics

2 answers:

Tasya [4]3 years ago

8 0

Answer: The first one is the proportion

Step-by-step explanation: the reason is because it starts at the orgin.

Verdich [7]3 years ago

6 0

Answer: The only graph that shows a proportional relationship is the line that crosses the origin point (0,0).

Explanation

The other graphs are linear functions but not not proportional relationships.

The general form of a proportional relationship is y = kx, where k is the proportionality constant. So, for x = 0 you will always obtain y = 0.

The general form of a linear relationshio is y = kx + b, being b the y-intercept, so if the y-intercept is not 0, it is not a proportional relationship. That is what happens with the other three graphs.

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3 years ago

IfA=(-2,-4) and B=(-8,4), what is the length of AB?

lisabon 2012 [21]

Answer:

<h2>10 units </h2>

solution,

A(-2,-4)--->(X1,y1)

B(-8,4)----->(x2,y2)

now,

$ab = \sqrt{(x2 - x1) ^{2} + {(y2 - y1)}^{2} } \\ \: \: \: \: = \sqrt{ (- 8 - ( - 2)) ^{2} + (4 - ( - 4)) ^{2} } \\ \: \: \: = \sqrt{( - 8 + 2) ^{2} + {(4 + 4)}^{2} } \\ \: \: \: = \sqrt{( - 6) ^{2} + {(8)}^{2} } \\ \: \: = \sqrt{36 + 64} \\ \: \: \: = \sqrt{100} \\ \: \: \: = \sqrt{ {(10)}^{2} } \\ \: \: \: \: = 10 \: units$

Hope this helps..

Good luck on your assignment

3 0

3 years ago

6. Which statement about this figure is true?

MaRussiya [10]

What statement and about what figure??

6 0

2 years ago

Find the slope of the line that passes through (1, 8) and (10, 1).

leonid [27]

Answer:

$m = \frac{1 - 8}{10 - 1} = - \frac{ 7}{9} \\$

Slope(gradient)=

$-\frac{7}{9}$

Good luck!

Intelligent Muslim,

From Uzbekistan.

8 0

3 years ago

Read 2 more answers

How to simplify this equation

Ainat [17]

6square root of 3 (numerator) over÷ square root of 3 and square root of 3. Then you get 6 square root of 3 over ÷ 3=2 square root of 3.
Take time mate) Good day.

6 0

3 years ago