Question

The slope formula can be used to find the slope, m, of a line with points (L1, y1) and (22, 42).

Y2 - Yi
22 - 21
m
Which is an equivalent equation?
O Y1 = -m (22 – x1) + y2
yı = -m (x2 – 21) – Y2
Oyı = m (22 – 21) + y2
Oyı = m (22 – 21) – Y2

Answer 1

Answer:
`(y-y_1)=m(x-x_1)\ or \ (y-y_2)=m(y-y_2)`

Explanation:

Point slope form:
`(y-b)=n(x-a)` , where n=slope , (a,b) is the point through which line passes.

If slope of the line = m and line passes through
`(x_1,y_1)` and
`(x_2,y_2)` :-

`(y-y_1)=m(x-x_1)\ or \ (y-y_2)=m(y-y_2)`

So, the equivalent equations are :

`(y-y_1)=m(x-x_1)\ or \ (y-y_2)=m(y-y_2)`