The lines shown below are perpendicular. if the green line has a slope of
-1/9 , what is the slope of the red line?
a. 9
b. 1/9
c. -9
d. -1/9

A. 9

Step-by-step explanation:

Given: The red line and the green line are perpendicular to each other.

The slope of green line =

We know that the product of slopes of two perpendicular line is -1.

Let m be the slope of red line ], then we have

Hence, the slope of the red line = 9.

or

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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