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A data set consists of these points: (2, 4), (4,7), (5, 12). Malinda found the

regression equation to be 9 = -2. 5x - 1. 5. Is she correct?

O

A. No. Both a and b are incorrect.

O

B. No. The value for bis incorrect.

O

C. No. The value for a is incorrect.

O

D. Yes. This is the correct equation.

2 Answers

3 votes
The answer is C. No. The value for a is incorrect
User Andy Dwyer
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3 votes

Answer:

The complete question is

"A data set consists of the following data points: (2,4),(4,7), (5, 12)

The line of best fit has the equation y = 2.5x - 1.5. What does this equation predict for a value of x = 7?

O A. 16

O B. 19

O C. 20.5

O D. 175

0 0 0

a. no. both a and b are incorrect.

b. no. the value for b is incorrect.

c. no. the value for a is incorrect.

d. yes. this is the correct equation."

The equation predict for a value of x = 7 in equation y = 2.5x – 1.5 is (x, y) = (3, 16). Option B is correct.

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

"A data set consists of the following data points: (2,4),(4,7), (5, 12)

y = 2.5x - 1.5

Puy x = 7

y = 2.5(7) - 1.5

y = 17.5 - 1.5

y = 16

The equation predict for a value of x = 7 in equation y = 2.5x – 1.5 is (x, y) = (3, 16). Option B is correct.

User Songs
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6.5k points