Find the value of x or y so that the line through the pair of points has the given slope.
-$( - 1,4 )$ and $( 4 , y ) ; m = 0$
A) $- 4$
B) 3
C) $- 3$
D) 4

Question

Quizplus · Accepted Answer

The slope $m$ of a line through two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $m = \frac{y_2 - y_1}{x_2 - x_1}$. Given $m = 0$, $(x_1, y_1) = (-1, 4)$, and $(x_2, y_2) = (4, y)$, we have $0 = \frac{y - 4}{4 - (-1)}$. Solving for $y$, we find $y = 4$.

Find the Value of X or Y So That the Line