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(06.04 MC) Dennis drew the line of best fit on the scatter plot shown below: A graph is shown with scale along x axis from 0 to 10 at increments of 1 and scale along y axis from 0 to 15 at increments of 1.The ordered pairs 0, 15 and 0.5, 14 and 1, 13 and 2, 12 and 3, 11 and 4, 9 and 5, 8 and 6, 6 and 7, 4.5 and 8, 2.3 and 9, 2 and 9.8, 0.5 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 10, 0. What is the approximate equation of this line of best fit in slope-intercept form?

Respuesta :

musiclover10045

Using the two points on the line:

(0,15) and (10,0)

The slope of the line is the change in Y over the change in x:

slope = 0 -15 / 10-0

Slope = -15/10 , Dividing by 5 this can be reduced to -3/2

The y-intercept is the y value, when x equals 0, in this problem they give you the point (0,15), which means Y is 15 when x is 0.

The equation of a line is written as y = mx+b, wherem is the slope and b is the y-intercept.

Replace m and b with the calculated slope and y-intercept to get:

y = -3/2x + 15

ddjones4

Answer:

y = -3/2x + 15

Step-by-step explanation:

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