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svet-max [94.6K]
3 years ago
10

Please help......

Mathematics
1 answer:
rosijanka [135]3 years ago
5 0
1. using 2 dots that are on the blue line (0,72) and (6,69)
find the slope:

slope = change in Y over change in x = 69 - 72 / 6-0 = -3 / 6 = -1/2
 equation would be y = -1/2x + 72

2. y = -1/2x+72 = -1/2(30) +72 = -15 +72 = 57 beats per minute

3. replaced x in the equation with 30 to find the beats per minute for exercising 30 minutes

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Y varies inversely with x. When x = 3 then y = 5. Write a function to represent this relationship.
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Answer:

<em>The function to represent this relationship will be:  y= \frac{15}{x}</em>

Step-by-step explanation:

y  varies inversely with  x. That means......

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where k is a proportional constant.

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