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The following linear equation represents the line of best fit for the following scatter plot

y=0.15x-1.5

Use the equation to answer the following questions. Predict the number of hits a person would have to do to get 30 home runs.

A) 3
B) 210
C) 190
D) 6

The following linear equation represents the line of best fit for the following scatter plot y015x15 Use the equation to answer the following questions Predict class=

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Space

Answer:

210 hits

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

y = home runs

x = hits

[Best Line of Fit] y = 0.15x - 1.5

We can use this to predict the average of the scatter plot.

home runs = y = 30

Step 2: Solve for x hits

  1. Substitute [BLF]:                     30 = 0.15x - 1.5
  2. Add 1.5 to both sides:            31.5 = 0.15x
  3. Divide 0.15 on both sides:     210 = x
  4. Rewrite:                                   x = 210

Remember that this is a prediction. According to the best line of fit, we would need 210 hits to get 30 home runs.

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