Answer:

Step-by-step explanation:
We were given the slope formula;

This line is vertical if the denominator is zero.
That is when 
This implies that;

Justification;
When
, then, the line passes through;
and 
The slope now become

The equation of the line is

This implies that;




... This is the equation of a vertical line.
Answer:
B
Step-by-step explanation:
its a graph and I agree math is dumb
Answer: 7 inches
Step-by-step explanation:
4 times 1 3/4 is 7