Question

Which is in an equation of the line through (0,0) and (-8,-5)?

Answer 1

To finde the equation of the line troughh the points (0;0) and (-8;-5) first you must find the slope of the line. You have to use the next formula:

`m=(y2-y1)/(x2-x1)`

Replacing the points in the previous formula

`m=(-5-0)/(-8-0)=(5)/(8)`

As the line passes trough the origin of coordinates (point (0;0)) the equation is:

`y=(5)/(8)x`

So the answer is y= 5/8 x (option B)