Which equation describes the line that passes through points (2,5) and (0,9)? A. y=−2x+9 B. y=2x+9 C. y=9x+5 D. y=−x+9

Answer 1

y = mx + b

m = (9 - 5)/(0 - 2) = -2

y = -2x + b

Find b using either point. Using (0,9),

9 = -2(0) + b

b = 9

y = -2x + 9