Given points (2,4) and(1,-5), write an equation in slope intercept form

y = 9x - 14

Step-by-step explanation:

the equation of a line in slope- intercept form is

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

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (2, 4) and (x₂, y₂ ) = (1, - 5)

m = = = 9, hence

y = 9x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (2, 4 ), then

4 = 18 + c ⇒ c = 4 - 18 = - 14

y = 9x - 14 ← equation in slope- intercept form

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13