Question

Waylan created a scatter plot and drew a line of best fit, as shown. PLEASE HELPPPPPP 20 POINTSS

Answer 1

C

Explanation:

the equation of a line in slope- intercept form is

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

calculate slope m using the slope formula

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

let (x₁, y₁ ) = (4, 8) and (x₂, y₂ ) = (16, 17) ← 2 points on the line

substitute these values into the formula for m

m =
`(17-8)/(16-4)` =
`(9)/(12)` =
`(3)/(4)`

the line crosses the y- axis at (0, 5 ), then c = 5

y =
`(3)/(4)` x + 5 ← equation of the line of best fit