Question

write equations of the horizontal and the vertical lines that pass through the point (-3,9). the equation of the horizontal line is \boxed{}. (type an equation. use integers or fractions for any numbers in the equation.)

Explanation:

Step1: Recall horizontal line form

A horizontal line has the form $y = k$, where $k$ is the y-coordinate of any point on the line.

Step2: Identify y-coordinate of the point

The given point is $(-3, 9)$, so its y-coordinate is $9$.

Step3: Write the horizontal line equation

Substitute $k=9$ into the horizontal line form.
$y = 9$

Answer:

$y = 9$