Question

There is a line of of best fit using the points (165,168) and (174,178) what is the equation ?

Answer 1

Answer:

y = 10/9x - 46/4 OR y = 10/9x -15.3

Step-by-step explanation:

1. Find the slope of the points (change in y over the change in x)

(174, 178)

(165, 168)

10/9

2. Plug into y = mx + b to find the y-intercept of the equation (I am using point 165, 168)

168 = 10/9(165) + b

3. Solve

168 = 10/9(165) + b

168 = 550/3 + b

-46/3 = b OR -15.3 = b

3. Plug in the slope and the y-intercept into y = mx + b

y = 10/9x - 46/4 OR y = 10/9x -15.3