3 years ago

Which best explains why the equation y=2x+3 does or does not represent a proportional relationship?

Mathematics

1 answer:

pav-90 [236]3 years ago

4 0

Answer:

It represents a non-proportional relationship

Step-by-step explanation:

because in order for it to be proportional it has to pass (0,0) but this equation's y-intercept is (0,3).

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A segment has endpoints at (-2,3) and (7,9), How long is the segment?

trasher [3.6K]

$l=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}=\sqrt{(7-(-2))^2+(9-3)^2}=\sqrt{9^2+6^2}\\=\sqrt{81+36}=\sqrt{117}=10.82 \ units$

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3 years ago

What is the slope of the line in the graph?<br>4th possible answer is 4/3<br>----<br>بنام<br>

Delvig [45]

Answer: Second option.

Step-by-step explanation:

The slope of a line can be calculated with this formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Then, you need to choose two points of the line shown in the graph and substitute them into the formula for calculate the slope:

Let's pick the points (-4,4) and (4,-2).

Substituting:

$m=\frac{-2-4}{4-(-4)}$

Simplifiying, you get that the slope of the line in the graph is:

$m=\frac{-2-4}{4-(-4)}\\\\m=\frac{-6}{4+4}\\\\m=\frac{-6}{8}\\\\m=-\frac{3}{4}$

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4 years ago

What does the graph of 4 < n + 6 < 9 look like? A. open circles around –2 and 3 and the line shaded to the left of 3, infi

iren2701 [21]

Answer:

Explanation:

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3 years ago

How much do you need to add to 2 5/8 to make 6

docker41 [41]

Answer:

3 3/8

Step-by-step explanation:

6 minus 2 5/8 equals 3 3/8

3 3/8 plus 2 5/8 equals 6

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3 years ago

Read 2 more answers

Solve each system of equations below by the substitution method. And show your work.

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Instead of typing it all on here, I included my explanations with the work.

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