CoolStuffYT

We can already tell the slope must be negative, because as the $x$ value increases the $y$ value goes down.

We eliminate B and C to get choices of A and D.

A has a y-intercept of a positive number while D has a y-intercept of a negative number. From the points we can see that at $x=-1$, $y=5$ and at $x=2$, $y=-1$. We can see that at $x=0$ the answer will be positive, so A is the correct answer.

We can check by graphing.

The red line is $y=-2x+2$ and we can see that seems like the best line.

You are very welcome!

:P

Thanks, that helped!

Let's see all of them.

It seems like for all of them B overpowers, except for C.

A, B, D have mostly B's but C has a general mix, therefore, the answer is C.

You are very welcome!

:P

This is an expression, so we can only simplify it as much as possible!

Do we see like terms? Yes, we see the $x$ three times and they are all to the same degree, $x^1$.

Therefore, we can add the coefficients of them and get $2x-5y+5x+3x=2x+5x+3x-5y=10x-5y$ .

The expression is $10x-5y$.

To simplify even more, if you want, we can factor out a 5.

$10x-5y=5(2x-y)$

You are very welcome!

:P

You can graph it, just like this.

Or, you can do it with math.

The x-coordinate means that the y value must be zero. We can plug in $y=0$ and get $3x=7$ .

Simplifying we get $x=7/3$ , so the x-coordinate is 7/3.

You are very welcome!

:P

Well, this is tedious but simple.

After counting all the characters we find that there are a total of 100 characters (at least when I counted). From this all we do is see that the number of "e"s to the number of total characters is $18/100$, or $9/50$.

You are very welcome!

:P