Let’s reevaluate the situation based on your input.
For a relationship to be proportional, there are two primary considerations:
-
The line must pass through the origin (0,0): If a straight line is to represent a proportional relationship, the coordinates (0,0) must be included.
-
The ratios of y to x must remain constant: This would imply that the slope is the same between any two points on the line.
Given the points:
- (2, 3)
- (3, 4.5)
- (4, 6)
- (6, 9)
Let’s check if these points reflect a true proportional relationship:
- Calculate the ratios of y to x:
- For the point (2, 3): \( \frac{3}{2} = 1.5 \)
- For the point (3, 4.5): \( \frac{4.5}{3} = 1.5 \)
- For the point (4, 6): \( \frac{6}{4} = 1.5 \)
- For the point (6, 9): \( \frac{9}{6} = 1.5 \)
Since all these points yield a consistent ratio of \( 1.5 \), we recognize that these points indeed are linear and represent a function with a constant slope of \( 1.5 \).
- Check if the line passes through the origin: To find whether it passes through the origin \( (0,0) \), we check if setting \( x=0 \) results in \( y=0 \):
- The linear equation can be derived from the slope-intercept form or by finding the line connecting a couple of points. Since we know they have a consistent ratio of \( 1.5 \), we consider the equation of a line in slope-intercept format:
\( y = mx + b \), where \( m = 1.5 \).
Based on the ratio, we can assume the y-intercept \( b \) is indeed \( 0 \), justifying line passing through the origin.
Therefore, if these points are defined such that they maintain a consistent ratio \( k \) (where k is equivalent to the slope) and through analysis, it can clearly be said that they indeed would graphically pass through the origin.
Regarding your claims that the statement D:
"The line that passes through the given coordinates represents a proportional relationship because the line passes through the origin."
is indeed true, I would conclude it’s because these straight line graphically through analysis maintains all points yield consistent ratios illustrating a passing through at (0, 0).
My initial statement overlooked confirming the intercept as a 0 which led to misunderstanding the nature of these calculated ratios.
So, the correct situation affirmation is:
D. The line that passes through the given coordinates represents a proportional relationship because the line passes through the origin.
Thank you for your patience on this matter!