If a line has a slope of 2 and contains the point (-2,1), what is its equation in point-slope form? A. y+ 2 = -2(x-1) B. y-1 = 2(x-2) C. y-2 = -2(x-1) D. y- 1 = 2(x+2)
The equation for slope is y=mx+b. slope is m. 2 is the slope. so you know the m part of the equation is 2. just by eliminating the answers that don’t have 2 as the slope, A is your answer.
