Question

what is the equation in point-slope form of the line passing through (1,9) and (-1,11)

Answer 1

y = -x +10

Answer 2

\[M = (y_2 - y_1)/(x_2 - x_1)\]

Answer 3

= 11 - 9 / -1 - 1
= 2/ -2
m = -1

Answer 4

\[y - y_1 = m(x - x_1)\]

Answer 5

y - 9 = -1(x - 1)
y - 9 = -x +1
y = -x +1 + 9
y = -x + 10