HEEEEEELP ME PLEAAASE!
A line has the following characteristics.
- It is perpendicular to the line y=1/2x +3
-It passes through the point (4,0)
What are m, the slope and b, the y-intercept of the line?

Question

HEEEEEELP ME PLEAAASE!
A line has the following characteristics.
- It is perpendicular to the line y=1/2x +3
-It passes through the point (4,0)
What are m, the slope and b, the y-intercept of the line?

anonymous · Answer

A perpendicular line has a slope that is the negative reciprocal?
What is the negative reciprocal of 1/2? (This is the slope)

After you get that, plug in (4, 0) into slope-intercept form.
y = mx + b
0 = 4m + b
Plug in the slope and solve for b.