I’m not sure what the question is but I’m just gonna assume that you need the equation: y=1/2x+5
Answer:
The constant of proportionality is 1/4.
Step-by-step explanation:
I think the answer may be 54 but i'm not sure.
The wrestler's weight before he went on his diet is 78 kg
<h3>How to find the y-intercept?</h3>
The formula for slope is;
m = (y2 - y1)/(x2 - x1)
Thus, using two points we have;
m = (93.6 - 85.8)/(3 - 1.5)
m = 5.2
At the start of his diet, time in months = 0 months and so x = 0. Thus;
5.2 = (85.8 - y0)/(1.5 - 0)
5.2 * 1.5 = 85.8 - y0
y0 = 85.8 - (5.2 * 1.5)
y0 = 85.8 - 7.8
y0 = 78 kg
Thus, the wrestler's weight before he went on his diet is 78 kg
Read more about y-intercept at; brainly.com/question/26249361
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Y=4x+9 is not a direct variation an example of a direct variation is y=2x