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nevsk [136]
3 years ago
7

Which graph shows a proportional relationship?

Mathematics
2 answers:
maw [93]3 years ago
8 0

The first picture, second picture,fourth picture represents proportional relationship.

Further explanation:

Explanation:

The points in the first picture are \left( {0,0} \right), \left( {2,1} \right),\left( {4,2} \right) and \left( {6,3} \right).

The slopes between the points can be obtained as follows,

\begin{aligned}m &\frac{{1 - 0}}{{2 - 0}}\\&= \frac{1}{2}\\\end{aligned}

\begin{aligned}m&= \frac{{2 - 1}}{{4 - 2}}\\&=\frac{1}{2}\\\end{aligned}

\begin{aligned}m&= \frac{{3 - 2}}{{6 - 4}}\\&= \frac{1}{2}\\\end{aligned}

The slopes between the points are equal. Therefore, in the first picture x and y are in a proportional relationship.

The points in the second picture are \left( {0,2} \right), \left( {1,3} \right),\left( {2,4} \right) and \left( {3,5} \right).

The slopes between the points can be obtained as follows,

\begin{aligned}m&= \frac{{3 - 2}}{{1 - 0}}\\&= 1\\\end{aligned}

\begin{aligned}m&=\frac{{4 - 3}}{{2 - 1}}\\&= 1\\\end{aligned}

\begin{aligned}m&=\frac{{5 - 4}}{{3 - 2}}\\&= 1\\\end{aligned}

The slopes between the points are equal. Therefore, in the second picture x and y are in a proportional relationship.

The points in the third picture are \left( {0,4} \right), \left( {1,3} \right),\left( {2,2} \right) and \left( {3,1} \right).

The slopes between the points can be obtained as follows,

\begin{aligned}m&= \frac{{3 - 4}}{{1 - 0}}\\&= - 1\\\end{aligned}

The slope is negative. Therefore, in the third picture x and y are not in a proportional relationship.

The points in the fourth picture are \left( {2,0} \right), \left( {3,1} \right),\left( {4,2} \right) and \left( {5,3} \right).

The slopes between the points can be obtained as follows,

\begin{aligned}m&= \frac{{1 - 0}}{{3 - 2}}\\&= 1\\\end{aligned}

\begin{aligned}m&= \frac{{2 - 1}}{{4 - 3}}\\&= 1\\\end{aligned}

\begin{aligned}m&= \frac{{3 - 2}}{{5 - 4}}\\&= 1\\\end{aligned}

The slopes between the points are equal. Therefore, in the fourth picture x and y are in a proportional relationship.

The first picture, second picture,fourth picture represents proportional relationship.

Learn more:

  1. Learn more about inverse of the function brainly.com/question/1632445.
  2. Learn more about equation of circle brainly.com/question/1506955.
  3. Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Ratio and proportion

Keywords: function, First picture, second picture, proportional relationship, ratio, slope, set, set of values, set of numbers, coordinates, x-coordinate, y-coordinate.

ANEK [815]3 years ago
4 0
The first and the second and the last one 

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