Question

What is the equation of the following line? Be sure to scroll down first to see

all answer options.
(-3, 1)
(0,0)

Answer 1

-1/3x

Explanation:

Known :

• x1 = -3
• x2 = 0
• y1 = 1
• y2 = 0

Asked :

• Correct line equation

Solution :

We can find the straight line equation using this formula,

`(y-y1)/(y2-y1) = (x-x1)/(x2-x1)`

Insert all we know inside the formula,

`(y-1)/(0-1) = (x-(-3))/(0-(-3))\\(y-1)/(-1) = (x +3)/(3)\\`

Use cross multiplication,

3(y - 1) = -1(x + 3)\

3y - 3 = -x - 3

3y = -x - 3 + 3

3y = -x

y = -1/3x

Conclusion :

The correct equation is y = -1/3x