Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.
y = 4
x = 5
y = 7
x = 7

I never really understood most of this no matter how easy it sounds, haha.

Question

Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.
y = 4
x = 5
y = 7
x = 7

I never really understood most of this no matter how easy it sounds, haha.

jadedry · Answer

Alright, in order to find a perpendicular line, it has to have a slope that is the negative reciprocal of the line it is perpendicular to. 

for x = 4, it technically has /no/ slope. But, for these lines, you can find a perpendicular line in y = n (where n is any value you choose.) 

However, as for y=n has to cross through the points, 5, 7 as well.

mrnood · Answer

|dw:1447682856503:dw|

can you draw the line x=4 on this diagram?

it passes thrugh the point 4 =4 on the axis, and is VERTICAL