Question

What is the equation in slope-intercept form of the line that passes through the point (-1, -1)and is perpendicular to the line represented by y = 1/2x + 5?A. y = -2x - 1B. y = -2x - 3C. y = 1/2x - 3D. y = 1/2x + 1

Answer 1

since we know that the slope of the other line is 1/2, we deduce that the slope of the line that we need to find is -2

then applyind the point-slope formula to the point (-1,-1), the line will be

$y+1=-2(x+1)\Rightarrow y=-2x-3$

Then the answer will be B.