Vertical and horizontal line (1,-4)—do X=blank and Y=blank

x = 1 and y = - 4

Step-by-step explanation:

The equation of a vertical line is

x = c

where c is the value of the x- coordinates the line goes through.

Here the line passes through (1, - 4) with x- coordinate 1, thus

x = 1 ← equation of vertical line

The equation of a horizontal line is

y = c

where c is the value of the y- coordinates the line goes through.

Here the line passes through (1, - 4) with y- coordinate - 4, thus

y = - 4 ← equation of horizontal line

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step-by-step explanation: