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A triangle has vertices on a coordinate grid at
J(9,4),K(9,-3), and
L(4,-3). What is the length, in units, of
bar(JK) ?
Answer: units

A triangle has vertices on a coordinate grid at $J(9,4), K(9,-3)$ , and $L(4,-3)$ . What is the length, in units, of $\overline{J K}$ ? $\newline$ Answer: $\square$ units

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Calculate quartiles and interquartile range

Full solution

Q. A triangle has vertices on a coordinate grid at

J(9,4), K(9,-3)

, and

L(4,-3)

. What is the length, in units, of

\overline{J K}

?

\newline

Answer:

\square

units

Identify Coordinates: Identify the coordinates of points $J$ and $K$ . Point $J$ has coordinates $(9,4)$ and point $K$ has coordinates $(9,-3)$ .
Recognize Vertical Line: Recognize that $\overline{JK}$ is a vertical line segment because the $x$ -coordinates of $J$ and $K$ are the same. Since the $x$ -coordinates are the same, we can find the length of $\overline{JK}$ by calculating the difference in the $y$ -coordinates.
Calculate Length: Calculate the length of bar( $JK$ ). $\newline$ The length of bar( $JK$ ) is the absolute value of the difference between the $y$ -coordinates of $J$ and $K$ . $\newline$ Length of bar( $JK$ ) = $|4 - (-3)| = |4 + 3| = 7$ units

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