QuestionHow many proportional relationships are shown in the coordinate plane below?
Choose 1 answer:
A 0
(B) 1
(C) 2
(D) 3
Studdy Solution
STEP 1
1. A proportional relationship is represented by a linear equation of the form , where is a constant.
2. A proportional relationship graphically appears as a straight line passing through the origin.
3. We need to count the number of such lines in the given image.
STEP 2
1. Identify the characteristics of a proportional relationship.
2. Analyze each curve in the coordinate plane.
3. Count the number of proportional relationships.
STEP 3
A proportional relationship is represented by a straight line that passes through the origin, meaning it has no y-intercept other than zero.
STEP 4
Examine the green curve: It is a downward-opening parabola, which is not a straight line and does not pass through the origin in a manner consistent with a proportional relationship.
STEP 5
Examine the purple line: It is a straight line that passes through the origin, indicating it could represent a proportional relationship.
STEP 6
Examine the blue line: It is also a straight line that passes through the origin, indicating it could represent a proportional relationship.
STEP 7
Count the number of lines that meet the criteria for a proportional relationship. Both the purple line and the blue line are straight lines passing through the origin.
The number of proportional relationships shown is:
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