Question

Determine the y intercept of the line that passes through the point (-4,1) and (2,4)

Answer 1

(2,1)

Explanation:

x y x y

(-4,1) (2,4) ← This is coordinates two

↑

This is coordinates one

The formula:

`m=(y^(2)-y^(1) )/(x^(2) -x^(1) )`

Now we need to plug in the numbers.

`m=(4-1)/(2--4)`

Since there are two subtraction symbols it turns the addition symbol.

`m=(4-1)/(2+4)`

Now we combine.

`m=(3)/(6)`

That can be simplified into
`m=(1)/(2)`

The numerator is y and the denominator is x.

Therefore its (2,1).

I hope this helped. :)