Based on the graph of this proportional relationship, yes, Jamila's price is the same per ounce for any size jar.
In Mathematics and Geometry, a proportional relationship is a type of relationship that passes through the origin (0, 0) and produces equivalent ratios as represented by the following mathematical equation:
y = kx
Where:
- y represents the y-variable or price ($).
- x represents the x-variable or jar capacity (in oz).
- k is the constant of proportionality.
Next, we would determine the constant of proportionality (k) by using various data points as follows:
Constant of proportionality, k = y/x
Constant of proportionality, k = 5/4 = 12.5/10
Constant of proportionality, k = 1.25.
Therefore, the required linear equation for Jamila's price per ounce is given by;
y = kx
y = 1.25x, which means that Jamal's price is $1.25 per ounce.