What is the equation of the line in slope-intercept form that passes through the point (0, 3) and is perpendicular to the line y = 2x - 6?

Question

What is the equation of the line in slope-intercept form that passes through the point (0, 3) and is perpendicular to the line y = 2x - 6?

Choose one answer.

A. y =-1/2 x - 6
 

B. y =-1/2 x + 3
 

C. y =1/2 x - 6
 

D. y =1/2 x + 3

Answer 1

Try plugging in the x and y values into the equations to see which ones work and which ones don't.  That should narrow down your choices a bit.  

 

Then you need to recall that slopes of lines that are perpendicular are negative reciprocals of each other.

For example if one like has a slope of 3/2, a perpendicular line would have a slope of -2/3.