If y = 12 when x = 4, find y when x = 12

y=36

Step-by-step explanation:

y = kx

12 = k4

k4/4 = 12/4

k = 3

If x = 12:

y = k (12)

y = 3 (12)

y = 36

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)

slope intercept form is y = mx + b