The formula for weight in linear function is y= 7.7x + 7
<u>Step-by-step explanation:</u>
Given that,
- The weight of the born baby = 7 lbs
- The weight of the baby at 10 years = 84 lbs.
To find the linear function, the rate of change of weight must be calculated.
<u>To find the rate of change of the baby's weight:</u>
The change in the weight is from 7 lbs to 84 lbs.
- The total change = 84 - 7 =77
- The rate of change = 77 / 10 years = 7.7
Therefore, the rate of change of weight of the baby is 7.7 lbs.
This means that, every year the weight has been increased by 7.7 lbs and in 10 years the baby gained a weight of 84 lbs.
<u>From this information, the linear function is given as :</u>
Total weight = 7.7(number of years) + born weight.
⇒ y= 7.7x + 7
where,
- The born weight is 7 lbs.
- y is the total weight of the baby
- x is the number of years
A translation down to the left since it’s negative
Answer:
8 hours
Step-by-step explanation:
Its is on the chart and is at the top
Answer:
y = x / 7
Step-by-step explanation:
For us to get direct variation equation, we must introduce a constant term.
If y varies directly as x:
y ~ x
y = Kx
Where K, is the introduced constant.
Now let's solve to get a direct variation equation.
When y=3 , x=21
We substitute, y=3 and x=21 in the
y = Kx
3 = K 21
Divide both sides by 21
3 / 21 = K 21/ 21
K = 3/21
K = 1 / 7
Therefore, we introduce K = 1 / 7 into the mother equation.
y = 1/7 * x
y = x / 7
The direct variation equation for the situation:
y = x / 7
Answer:
C. 256
Step-by-step explanation:
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