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:
C.
Step-by-step explanation:
Simplify using FOIL 15x3+18x+10x2+12
<span>m, because triangle ABC is similar to triangle EDC (by 3 congruent angles).</span>
Answer:
y= 5x+2
Explanation:
slope is 5 and the y-intercept is 2.
