Question

Line L passes through the points (1, 5) and (5, 8). What is the slope of a line that is perpendicular to line L?

-3/4
-4/3
3/4
4/3

Answer 1

can you find the slope of a line given 2 points??

Answer 2

The slope of the line through points (x1,y1) and (x2,y2) is given by :
\(\huge m=\frac{y_1-y_2}{x_1-x_2}\)
now,just put the values and find m.

Answer 3

m=3/4

so thats my final answer?

Answer 4

thats the slope of line L

but we need the slope of a line that is perpendicular to line L!

Answer 5

the slope of perpendicular lines have product = -1

Answer 6

so m*(3/4) = -1

find m

Answer 7

m=-4/3

Answer 8

thats correct! :)

Answer 9

Thank u!

Answer 10

welcome ^_^