If the line is parallel to y-axis, then x is a constant for that line. x for the given point equals 2, so all other points of the line will have x=2.
An equation for the line that passes through the point (2, −9) and is parallel to the y-axis is x=2.
Answer:
The answer to your question is Ф = 45°
Step-by-step explanation:
Data
A (1, 4)
B (-1, 2)
Process
1.- Find the slope of the line
formula
m =
Substitution
m =
Slope definition, is the steepness of a line and also is the tangent of the angle of the line.
tangent Ф = slope
tangent Ф = 1
Ф = tangent⁻¹ 1
Ф = 45°