Answer:
I believe the answer should be the first, third, and, last option but don't listen to me it could be wrong.
Step-by-step explanation:
I believe the answer is wrong so don't listen to me
Answer:
The value of x is reciprocal of the difference of a and b.
Step-by-step explanation:
We are given the equation, 
On simplifying, we get,

i.e. 
i.e. 
i.e. 
So, we get,
The value of x is
.
That is, the value of x is reciprocal of the difference of a and b.
Answer:
Step-by-step explanation:
A, B and C must be real numbers, and A and B are not both zero (which would cause division by zero in the calculation of the slope).
Yeah I’m pretty sure you’re right
<h3>
Answer: Non proportional</h3>
Proportional equations are of the form y = kx, for some fixed constant k. The k value is the constant of proportionality.
The +100 at the end is why we don't have a proportional equation.
Visually all proportional equations go through the origin, meaning the lines have y intercept of 0. For y = 230x+100, the y intercept is 100.