Question

PLEASE HELP FAST!!! Estimate the line of best fit using two points on the line.

Answer 1

D

Explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m =
`(y_(2)=xy_(1) )/(x_(2)-x_(1) )`

with (x₁, y₁ ) = (2, 8) and (x₂, y₂ ) = (8, 5)

m =
`(5-8)/(8-2)` =
`(-3)/(6)` = -
`(1)/(2)`

The line crosses the y- axis at (0, 9) ⇒ c = 9

y = -
`(1)/(2)` x + 9 → D

Answer 2

D) y= -1/2x+9

Explanation:

if u substitute y with 8 u will get 2

if u substitute y with 5 u will get 8