3 years ago

A scatter plot was constructed and a line of best fit drawn as shown.

Mathematics

2 answers:

levacccp [35]3 years ago

7 0

Answer

y = 5x +25

Explanation

To get the equation of a line, first get the slope of the line.

Slope = (change in y)/(change in x)

= (60-30)/(7-1)

= 30/6

= 5

Now use one point in the line (4,45) and a general point (x,y).

Slope = (change in y)/(change in x)

5 = (y - 45)/(x - 4)

5(x - 4) = (y - 45)

5x - 20 = y - 45

y = 5x -20 + 45

y = 5x + 25

MissTica3 years ago

4 0

Answer:

y = 5x +25

Step-by-step explanation:

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