What is the equation of the blue line?

y=4x -3

This is one equation you can use

Y= 4x-3

Step-by-step explanation:

The y-intercept is -3,

the slope is 4:

rise over run= 4/1 or 4

so 4x-3

I hope this helps!

the answer will be the last one

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)