Question

Which of the following is an equation of the line that passes through the point (1, 1) and has a slope of 2? A. y = 2x – 1 B. y = 2x + 1 C. y = –2x – 1 D. y = –2x + 1

Answer 1

let see..
y = mx + b right?
m = slope and b=y

Answer 2

I believe it is B.

Answer 3

y = mx + b
slope(m) = 2
(1,1) x = 1 and y = 1
now we sub..
1 = 2(1) + b
1 = 2 + b
1 - 2 = b
-1 = b
so you equation is : y = 2x - 1