Determine if jk and lm are parallel, perpendicular, or neither j(1,9),k(7,4),l(8,13),m(-2,1)

The slope of JK is the negative reciprocal of the slope of LM, they are therefore perpendicular.

Note the following key-points regarding parallel lines and perpendicular lines:

Let's find the slope of JK and LM to know if they are perpendicular, parallel or not:

Slope formula =

The slope of JK is

Slope formula =

The slope of JK, is the negative reciprocal of the slope of LM, , therefore, JK and LM are perpendicular.

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"perpendicular"

Step-by-step explanation:

We need to find slope (m) of both line JK and LM

Slope has formula:

Lets find slope of JK:

Lets find slope of LM:

we know if we multiply two lines' slope and get -1, they are perpendicular. Let's check:

Hence, they are perpendicular

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.