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Odd intergers are 1,3,5,7,9,etc.,etc...

The equations are n+(2+n)+(4+n)=y and n+13=y

REMEMBER, odd numbers only.

So, let's try 5, 7, 9

5+7+9

12+9

21

Now, let's test out the second part of this problem.

13+7=21

20=21.

Wait a minute! 20 does NOT equal 21, so that doesn't seem right.

Try 3, 5, 7.

3+5+7=15

Test the second part of the equation.

5+13=15

18=15

Once again, incorrect. 18 does NOT equal 15.

try 7, 9, 11

7+9+11=27

Test the second part of the equation.

13+9=27

22=27

For the final time, INCORRECT. Therefore, there are no intergers that will work for that equation. 

(-9/7)+1/3u=-3/2 = u=-((9/14))

Yeah, you can check out CliffsNotes, they're pretty good.

Slopes: Ex. y=3x-8

Slope is in bold.

Function: Ex. f(x)=14x²+9

Function is italicized.

Domain: Ex. f(x)=3x²+6 {1,5,25}

Domain is underlined.

Once again, the domain of a function contains all of the possible input values that you can use — every number that can be put into the formula or equation and get a real answer.

Well, slopes are m in the y=mx+b formula (or the "Slope-Intercept" formula)

Functions are just about the same. Ex. f(x)=3x+27

Domains... Domains are a bit different. I am going to source CliffsNotes here. Ahem..."The domain of a function contains all of the possible input values that you can use — every number that can be put into the formula or equation and get a real answer."

If this is not what you are asking, please let me know. Thank you! :D

SO, perpendicular lines mean the slope is the opposite reciprocal of the given one.

5/4, opposite reciprocal is -4/5.

Let's see here...

We can test these values on a graph by graphing the equation.

So, from the point and the slope given, I've found the y-intercept to be -3.

I believe the y-intercept is opposite, but not a reciprocal. 

Hmmm..... I've been graphing for a bit but I don't think that strategy is going to work. Cphill, can you take it from here?

You too Caligirl!

Thank you, melody! So, the square root of 25 can be ±5 because 5*5=25 and (-5)*(-5)=25.

HOWEVER, (-5)*5 is NOT 25, it is -25.

sqrt(25) = 5