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MaRussiya [10]
2 years ago
8

Solve the problems using your graphing calculator. Round all parameter values to

Mathematics
1 answer:
Effectus [21]2 years ago
7 0

Drawing a scatter plot for the given values on a graphing calculator, we have;

  • y = -0.19•x + 8.36

<h3>How can the function that best represents the data be found?</h3>

The values are;

Day; Running time

1; 8.2

2; 8.1

3; 7.5

4; 7.8

5; 7.4

6; 7.2

7; 7.1

Entering the above values in a graphing calculator, we have;

  • The slope of the line of best fit = -0.19
  • The x-intercept = 45

Therefore;

  • 0 = -0.19 × 45 + y-intercept

0 = -8.36 + y-intercept

  • y-intercept = 8.36

The equation found using the statistics function for scatter plot on a calculator is therefore;

  • y = -0.19•x + 8.36

Learn more about scatter plots here:

brainly.com/question/2605413

#SPJ1

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Answer:

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Step-by-step explanation:

lets substitute the appropriate values in the equation:

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Answer:

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2. b

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3 years ago
If 5-y^2=x^2 then find d^2y/dx^2 at the point (2, 1) in simplest form. ​
ratelena [41]

Answer:

y"(2, 1) = -5

Step-by-step explanation:

Step 1: Define implicit differentiation

5 - y² = x²

Step 2: Find dy/dx

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  2. Isolate y': y' = 2x/-2y
  3. Isolate y': y' = -x/y

Step 3: Find d²y/dx²

  1. Quotient Rule: y'' = [y(-1) - y'(-x)] / y²
  2. Substitute y': y" = [-y - (-x/y)(-x)] / y²
  3. Simplify: y" = [-y - x²/y] / y²
  4. Multiply top/bottom by y: y" = (-y² - x²) / y³
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Step 4: Substitute and Evaluate

y"(2, 1) = -(1² + 2²) / 1³

y"(2, 1) = -(1 + 4) / 1

y"(2, 1) = -5/1

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2 years ago
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