Question

what is the equation of thi line (2,2) (1,-2)
A.y=1/4x - 6
B.y=6x - 1/4
C.y=6x-4
D.y=4x - 6

Answer 1

Answer:

D

Step-by-step explanation:

$y = mx + b\\m = \frac{y_2-y_1}{x_2-x_1} = \frac{2-(-2)}{2-1} = \frac{4}{1} = 4\\ y = 4x + b\\2 = 8 + b\\b = -6\\y = 4x - 6$