Question

What is the equation of a vertical line passing through (1, 7)?

Answers: x = 7
y = 1
y = 7
x = 1
.

Answer 1

vertical line looks like x = a number

Answer 2

oh ok vertical line is x=a then x=1 is your answer

Answer 3

in this case you can see that x = 1 because the first coordinate of (1,7) is the "x" coordinate