It is true that if two variables are directly proportional then their graph is a linear function.
<h3>How to determine the true statement?</h3>
The highlights in the statement are given as:
- Two variables
- Direct proportion
- Linear function
The equation of a directly proportional graph is represented as:
y = kx
Where k represents the constant of variation
The equation y = kx is a linear function and k is the slope
Hence, it is true that if two variables are directly proportional then their graph is a linear function.
Read more about variation at:
brainly.com/question/6499629
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