Question

Estimate the line of best fit using two points on the line.​

Answer 1

Answer:

A. y = $-\frac{2}{3}$ x + 12

Step-by-step explanation:

Given the two points:

A = (x1, y1) =  (6, 8)

B = (x2, y2) = (9. 6)

From the photo, we can see that the line of fest fit is a straight line (linear) that go through the two points above.

We have the standard form of a linear equation is:

• y = mx + b

where m is the slope and b is the y-intercept

To find the slope, we use the following formula:

m = $\frac{y2-y1}{x2-x1}$

<=> m = $\frac{6-8}{9-6}$ = $-\frac{2}{3}$

Substitute m into the standard equation, we have:

• y = $-\frac{2}{3}$  + b (1)

Because the line go through point A, so we substitute A into (1), we have:

8 = $-\frac{2}{3}$ *6 + b

<=> b = 12

So our equation is: y = $-\frac{2}{3}$ x + 12

Answer 2

Answer: y=-2/3x+12

Step-by-step explanation: