Choose the equation that represents a line that passes through the point (1,5) and has undefined slope.

Answer:
x = 1
Step-by-step explanation:
A line with undefined slope is a vertical line with equation
x = c
where c is the value of the x- coordinates the line passes through
the line passes through (1, 5 ) with x- coordinate 1 , then
x = 1 ← equation of line